{"title":"Rulefiss","description":"\u003cp\u003eRulefiss at Nexoltic: 11 Rulefiss products across earbud headphones, priced from $29.02. Free tracked shipping on every US order.\u003c\/p\u003e\n\u003ch2\u003eRelated collections\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"\/collections\/earbud-headphones\"\u003eEarbud Headphones\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cdetails\u003e\u003csummary\u003eHow do I choose the right rulefiss?\u003c\/summary\u003e\u003cp\u003eStart with the compatibility details in each listing: model numbers, sizes, connectors and ratings are listed in the title and description. If you are unsure, email nexoltic@gmail.com with your device model and the product link and we will check it for you.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow much is shipping and how long does it take?\u003c\/summary\u003e\u003cp\u003eShipping is free on every US order and every order is tracked. Orders are dispatched within 1–4 business days, and most orders arrive within 3–8 business days of purchase.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I return it if it doesn't fit?\u003c\/summary\u003e\u003cp\u003eYes. You can return it within 30 days of delivery for a full refund, and return shipping is free: we email you a prepaid return label. Unused items in their original packaging qualify, and defective, damaged or wrong items are always eligible.\u003c\/p\u003e\u003c\/details\u003e","products":[{"product_id":"rulefiss-wireless-earbuds-bluetooth-5-4-enc-mic-48h-playtime-ip7-waterproof","title":"Rulefiss Wireless Earbuds – Bluetooth 5.4, ENC Mic, 48H Playtime, IP7 Waterproof","description":"\u003ch2\u003eRulefiss Wireless Earbuds: Sport-Ready Audio\u003c\/h2\u003e\u003cp\u003eExperience a compact, secure wireless listening solution designed for workouts, commutes, and daily tasks. These buds deliver a confident fit, clear calls, and a battery life that can keep up with long sessions.\u003c\/p\u003e\u003ch3\u003eFast, reliable connectivity\u003c\/h3\u003e\u003cp\u003eBluetooth 5.4 enables automatic pairing and a stable link with minimal dropouts. In typical spaces, the connection remains strong up to 33 feet from your device.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeamless one-step pairing from the case\u003c\/li\u003e\n\u003cli\u003eStable performance at home, in the gym, or on the move\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSound and call clarity\u003c\/h3\u003e\u003cp\u003eThe 14.2mm triple-layer drivers, paired with a dedicated sound path, deliver balanced lows and crisp highs. Four high-definition microphones enhance voice pickup while reducing exterior noise for clearer calls.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRicher, fuller sound with clear highs\u003c\/li\u003e\n\u003cli\u003eENC noise reduction for better conversations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSecure, comfortable fit for activity\u003c\/h3\u003e\u003cp\u003eThree tip sizes plus flexible earhooks create a personalized, secure fit that stays in place during runs and workouts. The design is sweat-resistant for training sessions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCustomizable ear tips for all ears\u003c\/li\u003e\n\u003cli\u003eIPX7 sweat and splash protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePower that keeps going\u003c\/h3\u003e\u003cp\u003eA quick 10-minute charge restores about 2 hours of playback, while the case extends total listening time to as much as 48 hours. A dual LED display shows battery status at a glance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFast charge to reduce downtime\u003c\/li\u003e\n\u003cli\u003eUp to 48 hours total playtime with the charging case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTouch controls and broad compatibility\u003c\/h3\u003e\u003cp\u003eResponsive touch controls let you manage music, calls, and voice assistants without fumbling. These earbuds pair with a wide range of Bluetooth-enabled devices.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecise controls with minimal mis-taps\u003c\/li\u003e\n\u003cli\u003eWorks with smartphones, laptops, TVs and more\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote: Benefits described reflect features and real-life use possibilities, not guarantees, and may vary by device and usage.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes Rulefiss Wireless Earbuds easy to pair and connect?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Bluetooth 5.4 enables automatic pairing and a stable connection up to 33 feet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long can I listen between charges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Up to 48 hours total playback with the charging case; 10-minute quick charge adds about 2 hours.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48409733202077,"sku":"B0FRLY1F44","price":29.02,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-wireless-earbuds-case-pairing.jpg?v=1781194712"},{"product_id":"rulefiss-wireless-earbuds-bluetooth-5-4-sport-earhooks","title":"Rulefiss Wireless Earbuds Bluetooth 5.4 Sport Earhooks","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Wireless Earbuds are sport-focused Bluetooth 5.4 earphones with earhooks, 56 hours total playtime, four ENC microphones, and IPX7 sweat resistance for dependable workouts and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Rulefiss Bluetooth earbuds blend long battery life, secure earhook fit, and enhanced call clarity in a compact, fast-pairing design. Built for active lifestyles, the 2026 model upgrades connection stability and audio drivers while keeping touch controls simple and compatible with most Bluetooth devices. The earbuds aim to deliver clear voice calls, robust low end, and comfortable all-day wear without frequent recharges.\u003c\/p\u003e\n\n\u003ch3\u003eHow reliable is the wireless connection for runs and gym sessions?\u003c\/h3\u003e\n\u003cp\u003eThe Rulefiss earbuds use Bluetooth 5.4 for a steady, low-latency link and automatic one-step pairing with previously paired devices. You can expect stable streaming within about 33 feet and fewer dropouts during movement compared with older Bluetooth versions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.4 chipset for improved signal stability\u003c\/li\u003e\n  \u003cli\u003eAutomatic fast pairing when removing earbuds from the case\u003c\/li\u003e\n  \u003cli\u003eReliable range of up to approximately 33 feet (10 meters)\u003c\/li\u003e\n  \u003cli\u003eReduced connection interruptions during workouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio and call quality should I expect?\u003c\/h3\u003e\n\u003cp\u003eAudio is driven by 14.2mm triple-layer diaphragm drivers tuned for stronger low-frequency response and clearer mids. For calls, four ENC microphones work together to suppress background noise and improve vocal clarity without altering your natural voice.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2mm triple-layer drivers for fuller bass and defined mids\u003c\/li\u003e\n  \u003cli\u003eFour high-definition ENC mics that reduce ambient noise\u003c\/li\u003e\n  \u003cli\u003eDesigned voice clarity for calls in noisy environments\u003c\/li\u003e\n  \u003cli\u003eBalanced sound suitable for music, podcasts and calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how fast does it charge?\u003c\/h3\u003e\n\u003cp\u003eRulefiss offers a practical battery system: up to 10 hours per earbud on a single charge and 56 hours total using the portable charging case. A 10-minute quick charge gives roughly 2 hours of playback, and a clear dual LED display shows both case and earbud power levels to avoid surprises.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 hours continuous playback per charge\u003c\/li\u003e\n  \u003cli\u003e56 hours total with charging case included\u003c\/li\u003e\n  \u003cli\u003e10-minute quick charge = about 2 hours playback\u003c\/li\u003e\n  \u003cli\u003eDual LED display for real-time battery monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds secure and sweatproof for exercise?\u003c\/h3\u003e\n\u003cp\u003eYes — the earbuds include flexible earhooks and three sizes of soft ear tips to create a secure fit that resists shifting during movement. With an IPX7 sweatproof rating, they withstand heavy sweat and light splashes, making them suited for running, gym sessions, and outdoor workouts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eErgonomic design with flexible earhooks for a locked-in fit\u003c\/li\u003e\n  \u003cli\u003eThree ear tip sizes (S\/M\/L) for personalized comfort\u003c\/li\u003e\n  \u003cli\u003eIPX7 water resistance against sweat and splashes\u003c\/li\u003e\n  \u003cli\u003eLightweight, wire-free design for active use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Rulefiss Wireless Earbuds are aimed at active users who want a reliable Bluetooth connection, extended battery life, and secure earhook support without sacrificing call clarity. They suit runners, gym-goers, commuters, and anyone who needs a durable, easy-to-use set of earbuds with clear voice pickup and quick charging for busy days.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do Rulefiss earbuds work with any smartphone?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They use Bluetooth 5.4 and pair with most Bluetooth-enabled phones, tablets, and laptops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does a quick charge last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A 10-minute quick charge provides about 2 hours of playback time.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413196189853,"sku":"B0FXFGGXQG","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-front-packaging.jpg?v=1781258075"},{"product_id":"rulefiss-wireless-earbuds-bluetooth-5-4-sport-earhooks-1","title":"Rulefiss Wireless Earbuds Bluetooth 5.4 Sport Earhooks","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Wireless Earbuds are sport-focused Bluetooth 5.4 headphones that deliver long battery life, secure earhooks, four-mic ENC calling, and IPX7 water resistance for workouts and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese 2026 Rulefiss earbuds combine a modern wireless chipset, large drivers, and an ergonomic sport design to meet active users' needs. They promise fast one-step pairing, a reliable connection up to about 10 meters (33 ft), and a portable charging case with a clear dual-LED battery display. Built for running, gym sessions, and all-day listening, the package includes multiple ear tip sizes and flexible earhooks to produce a secure fit without wires getting in your way.\u003c\/p\u003e\n\n\u003ch3\u003eHow long will the battery last during everyday use?\u003c\/h3\u003e\n\u003cp\u003eExpect extended playtime both from a single charge and from the charging case. A single earbud charge provides roughly 15 hours of playback, while the included case extends total listening time up to about 75 hours. Rapid charging is supported: a 10-minute top-up gives approximately 2 hours of additional playback when you're in a hurry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-earbud runtime: ~15 hours\u003c\/li\u003e\n  \u003cli\u003eTotal with case: up to 75 hours\u003c\/li\u003e\n  \u003cli\u003eFast charge: 10 minutes → ~2 hours play\u003c\/li\u003e\n  \u003cli\u003eType-C charging with dual LED power display\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio and call performance can I expect from these earbuds?\u003c\/h3\u003e\n\u003cp\u003eRulefiss uses oversized 14.2mm triple-layer diaphragm drivers and a tuned sound guide for deeper lows and clear mid-highs, aiming for a balanced, punchy listening profile. For voice calls, four ENC microphones reduce ambient noise and prioritize vocal clarity, improving call intelligibility in busy environments. The result is clearer calls and satisfying multimedia playback without frequent reconnecting or dropouts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2mm triple-layer drivers for fuller sound\u003c\/li\u003e\n  \u003cli\u003eFour ENC mics to minimize background noise\u003c\/li\u003e\n  \u003cli\u003eBluetooth 5.4 for stable wireless transmission\u003c\/li\u003e\n  \u003cli\u003eAutomatic one-step pairing to previous device\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these earbuds stay put and survive sweat or splashes?\u003c\/h3\u003e\n\u003cp\u003eYes — they are designed specifically for movement. Soft silicone tips in three sizes and flexible earhooks lock the earbuds in place so they remain comfortable during runs, HIIT, or long training sessions. An IPX7 rating protects internal components from sweat and splashes, making them suitable for intense workouts and outdoor exercise in wet conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree ear tip sizes (S\/M\/L) included\u003c\/li\u003e\n  \u003cli\u003eFlexible earhooks for a secure fit during activity\u003c\/li\u003e\n  \u003cli\u003eIPX7 water resistance for sweat and rain protection\u003c\/li\u003e\n  \u003cli\u003eLightweight, ergonomic contours for long-term comfort\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy are these earbuds to control and pair with devices?\u003c\/h3\u003e\n\u003cp\u003eTouch-sensitive controls give you quick access to music playback, calls, and voice assistants without reaching for your phone. The onboard smart chip reduces accidental touches and supports broad compatibility with Bluetooth-enabled phones, tablets, laptops, and smart TVs. Pairing is automatic once the case is opened and the earbuds are removed; they reconnect to the last paired device for a seamless experience.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecise touch controls for play\/pause, calls, and assistant\u003c\/li\u003e\n  \u003cli\u003eBroad Bluetooth compatibility with phones and computers\u003c\/li\u003e\n  \u003cli\u003eAutomatic fast pairing with previous device\u003c\/li\u003e\n  \u003cli\u003eStable connection range up to about 33 feet (10 meters)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These Rulefiss earbuds are aimed at active listeners who want sport-ready hardware — runners, gym-goers, commuters, and anyone who values long battery life and clear calls. If you need sweat resistance, a secure ergonomic fit, and a straightforward wireless experience with quick charging and a visible battery indicator, these earbuds are built for that lifestyle without unnecessary complexity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How fast do these earbuds pair with my phone?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They use Bluetooth 5.4 with one-step auto-pairing; remove them from the case and they reconnect to the last device automatically.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these earbuds suitable for intense workouts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — flexible earhooks, three ear tip sizes, and IPX7 water resistance make them ideal for running and gym sessions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413252255901,"sku":"B0FXDXPJ8Q","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-front-packaging_785f1dd9-66cc-407b-b181-5f0a15720b97.jpg?v=1781259169"},{"product_id":"rulefiss-wireless-earbuds-bluetooth-5-4-sport-earhooks-2","title":"Rulefiss Wireless Earbuds Bluetooth 5.4 Sport Earhooks","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Wireless Earbuds are sport-focused Bluetooth 5.4 earphones with secure earhooks, 56 hours total playtime, four ENC mics, and IPX7 water resistance for workouts and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese 2026-model Bluetooth earbuds blend long battery life, secure-fit design, and enhanced call clarity into a compact, sweatproof package. Built with a 14.2mm triple-layer diaphragm for fuller sound and a fast, reliable Bluetooth 5.4 link, the Rulefiss earbuds target runners, gym-goers, and commuters who need dependable audio and clear voice calls without bulk or tangled wires.\u003c\/p\u003e\n\n\u003ch3\u003eHow reliable is the wireless connection for running and commuting?\u003c\/h3\u003e\n\u003cp\u003eThe Rulefiss earbuds use Bluetooth 5.4 for a stable, low-latency link up to about 33 feet, minimizing dropouts during movement. One-step automatic pairing restores the last connected device as soon as you open the case, making day-to-day use frictionless.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.4 for consistent signal and reduced latency\u003c\/li\u003e\n  \u003cli\u003eUp to 33 ft reliable range in open spaces\u003c\/li\u003e\n  \u003cli\u003eAutomatic fast pairing from the charging case\u003c\/li\u003e\n  \u003cli\u003eWide compatibility with phones, tablets, laptops, and smart TVs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio performance and call quality can I expect?\u003c\/h3\u003e\n\u003cp\u003eAudio is driven by 14.2mm triple-layer diaphragm drivers for stronger low-end response and clear mids and highs. Four ENC microphones work together to reduce ambient noise and improve vocal clarity, making conversations clearer in noisy environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge drivers for richer bass and clearer mid\/high frequencies\u003c\/li\u003e\n  \u003cli\u003eFour high-definition mics with ENC to lower background noise\u003c\/li\u003e\n  \u003cli\u003eImproved vocal pickup for phone calls and voice assistants\u003c\/li\u003e\n  \u003cli\u003eBalanced tuning suitable for music, podcasts, and calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long do the earbuds run and how fast do they recharge?\u003c\/h3\u003e\n\u003cp\u003eEach earbud delivers up to 10 hours of continuous playback on a single charge, and the compact charging case extends total usage up to 56 hours. Fast charging gives around 2 hours of listening after only a 10-minute top-up, and the case uses a Type-C port with a dual LED display to monitor battery levels precisely.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 hours per single charge, 56 hours with the charging case\u003c\/li\u003e\n  \u003cli\u003e10-minute quick charge = about 2 hours playtime\u003c\/li\u003e\n  \u003cli\u003eType-C charging and dual LED status indicators\u003c\/li\u003e\n  \u003cli\u003eReal-time battery monitoring for case and earbuds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds suitable for sports and sweat-prone use?\u003c\/h3\u003e\n\u003cp\u003eYes — the earbuds feature an ergonomic shape with flexible earhooks and three sizes of silicone tips to keep them secure during intense activity. An IPX7 rating protects against sweat and splashes, so they work well for running, gym sessions, and outdoor training.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlexible earhooks for a snug, non-slip fit during movement\u003c\/li\u003e\n  \u003cli\u003eThree ear tip sizes (S\/M\/L) for personalized comfort and seal\u003c\/li\u003e\n  \u003cli\u003eIPX7 water resistance for sweat and light rain protection\u003c\/li\u003e\n  \u003cli\u003eLightweight construction designed for extended wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you want robust battery life, secure fit for active use, and clearer voice calls without wired hassles, Rulefiss Wireless Earbuds are built for you. They suit athletes, daily commuters, and anyone who needs dependable Bluetooth audio with easy controls and rugged sweat protection. These earbuds strike a balance between sport-ready durability and everyday convenience, making them a versatile choice for people who move a lot but don’t want to compromise on sound or call quality.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long is the total battery life with the charging case?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Up to 56 hours total playtime using the charging case; earbuds alone run about 10 hours per charge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these earbuds sweatproof for running?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they have an IPX7 rating for sweat and splash resistance, suitable for running and gym use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413290234013,"sku":"B0FXDV2XCS","price":31.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-front-view-packaging.jpg?v=1781259791"},{"product_id":"rulefiss-q38-wireless-earbuds-bluetooth-5-3-sport-earhooks","title":"Rulefiss Q38 Wireless Earbuds Bluetooth 5.3 Sport Earhooks","description":"\u003cb\u003eRulefiss Q38 are sport-focused Bluetooth 5.3 earbuds with flexible earhooks, 13mm drivers for wide-range audio, and a charging case that delivers up to 48 hours of total playtime.\u003c\/b\u003e\n\n\u003cp\u003eDesigned for active users, the Rulefiss Q38 blends stable wireless performance, long battery life, and a sweatproof build into a compact pair of in-ear headphones. They pair automatically after first connection, support AAC\/SBC decoding, and use 13mm graphene drivers to extend frequency response for clearer mids and punchier highs. With multi-touch controls, IP7 protection, and a dual LED percentage display on the case, these earbuds are tailored for workouts, commuting, and all-day listening.\u003c\/p\u003e\n\n\u003ch3\u003eHow reliable is the wireless connection during workouts?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 uses Bluetooth 5.3 with a high-sensitivity FPC antenna to keep a fast, stable link up to about 15 meters and reduce latency. It supports common Bluetooth profiles for calls and media, and automatically reconnects when removed from the case.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.3 chip for stronger signal and efficiency\u003c\/li\u003e\n  \u003cli\u003eAuto-reconnect after first pairing\u003c\/li\u003e\n  \u003cli\u003eCompatible with HSP, HFP, A2DP and AVRCP profiles\u003c\/li\u003e\n  \u003cli\u003eStable performance within ~15 m (50 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio quality and call performance can I expect?\u003c\/h3\u003e\n\u003cp\u003eEquipped with 13mm graphene moving-coil drivers and AAC\/SBC decoding, the Q38 extends the frequency bandwidth for more detailed instruments, fuller mids, and clearer high frequencies. Calls are improved by dual microphones and CVC 8.0 noise processing to preserve voice clarity in noisy settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e13mm drivers for wide dynamic range (20Hz–20kHz)\u003c\/li\u003e\n  \u003cli\u003eAAC\/SBC audio decoding for better fidelity on supported devices\u003c\/li\u003e\n  \u003cli\u003eTwo built-in mics plus CVC 8.0 for clearer voice pickup\u003c\/li\u003e\n  \u003cli\u003eBalanced sound suited to music and podcasts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how does charging work?\u003c\/h3\u003e\n\u003cp\u003eEach earbud runs roughly 6–8 hours per charge under normal listening; the included 800 mAh charging case extends total playback up to about 48 hours. The case shows remaining power in exact percentage using a dual LED display and supports fast Type‑C charging that replenishes the case in around 1.5 hours.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-charge earbud playback: ~6–8 hours\u003c\/li\u003e\n  \u003cli\u003eCharging case capacity: 800 mAh for up to 48 hours total\u003c\/li\u003e\n  \u003cli\u003eLED percentage display (1%–100%) on case for accurate battery status\u003c\/li\u003e\n  \u003cli\u003eUSB-C quick charge — case charges in ~1.5 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds comfortable and durable for exercise?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 sports a 45° soft silicone earhook and ultra-light 7 g earbud weight to help keep them secure during movement without adding pressure. IP7 waterproofing protects against sweat and rain; multiple silicone tip sizes are included for a custom fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSoft, flexible 45° earhooks for stable fit during activity\u003c\/li\u003e\n  \u003cli\u003eLightweight single earbud weight: 7 g\u003c\/li\u003e\n  \u003cli\u003eThree ear tip sizes (S\/M\/L) included for seal and comfort\u003c\/li\u003e\n  \u003cli\u003eIP7-rated protection from sweat and light water exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Rulefiss Q38 is aimed at sports enthusiasts, commuters, and anyone who wants a secure, long‑lasting pair of true wireless earbuds with clear calls and reliable Bluetooth performance. Choose this model if you need a comfortable earhook design, extended battery reserve displayed on a compact case, and waterproofing for active use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do the Q38 earbuds work with both iPhone and Android?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Q38 supports iOS 9.0\/Android 5.0+ devices and common Bluetooth profiles for media and calls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the earhooks removable and are they waterproof?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The soft earhooks are flexible for fit (not designed to be detached) and the earbuds have IP7 waterproofing for sweat and rain.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413635182749,"sku":"B0C57SK1WP","price":35.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-q38-front-packaging-blue.jpg?v=1781275496"},{"product_id":"rulefiss-q38-wireless-earbuds-sport-bluetooth-5-4-ipx7","title":"Rulefiss Q38 Wireless Earbuds Sport Bluetooth 5.4 IPX7","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Q38 are lightweight sport earbuds with Bluetooth 5.4, powerful 14.2mm Hi‑Fi drivers, 56 hours total playtime and IP‑X7 water protection for workouts and all‑day listening.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese earbuds combine upgraded wireless transmission, a focused sports fit and an LED charging case that reports remaining battery percentage. Built for active use, the Q38 pair offers layered sound, clear calls and fast reconnection across iOS, Android and other Bluetooth devices. Below you’ll find concise answers to the most common buyer questions so you can decide quickly.\u003c\/p\u003e\n\n\u003ch3\u003eHow do Rulefiss Q38 earbuds sound during music and calls?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 deliver a wide frequency range (18Hz–25kHz) using a 14.2mm composite diaphragm and support AAC\/SBC decoding to preserve detail. Bass is emphasized without muddying mids, while four built‑in microphones plus ENC help keep voice calls intelligible in everyday environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2mm drivers for fuller bass and clearer highs\u003c\/li\u003e\n  \u003cli\u003eAAC\/SBC audio decoding for better stereo detail\u003c\/li\u003e\n  \u003cli\u003eFour microphones with ENC noise reduction for clearer calls\u003c\/li\u003e\n  \u003cli\u003e41ms low latency for improved audio‑video sync\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Bluetooth 5.4 connection better for workouts?\u003c\/h3\u003e\n\u003cp\u003eBluetooth 5.4 improves transmission stability and resistance to interference compared with older standards. The Q38 uses dual‑channel streaming and optimized channel hopping to reduce dropouts while you move, so music and calls stay connected during runs or gym sessions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.4 with dual‑channel transmission for stable audio\u003c\/li\u003e\n  \u003cli\u003eOptimized anti‑interference mechanisms for fewer disconnects\u003c\/li\u003e\n  \u003cli\u003eAutomatic reconnection after the first pairing\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility with phones, tablets and laptops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will the battery last and how fast is charging?\u003c\/h3\u003e\n\u003cp\u003eThe compact 800 mAh charging case extends total usage to about 56 hours, while each earbud provides roughly 6–8 hours per single charge depending on volume and use. A Type‑C port supports quick recharging of the case in about 1.5 hours and the case’s LED percentage display keeps you aware of remaining power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6–8 hours per charge per earbud under normal use\u003c\/li\u003e\n  \u003cli\u003eUp to 56 total hours with the 800 mAh charging case\u003c\/li\u003e\n  \u003cli\u003eType‑C fast charging; case fully charges in ~1.5 hours\u003c\/li\u003e\n  \u003cli\u003eLED numeric power display (1%–100%) on the case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds comfortable and durable for exercise?\u003c\/h3\u003e\n\u003cp\u003eRulefiss designed the Q38 with a soft 45° earhook and ultra‑light construction so the earbuds stay secure during activity. They’re IP‑X7 waterproof, which protects against sweat and rain, and come with three sizes of silicone tips to tune comfort and seal for better sound isolation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSoft, flexible 45° earhooks for a secure sport fit\u003c\/li\u003e\n  \u003cli\u003eSingle earbud weight around 8 g for extended comfort\u003c\/li\u003e\n  \u003cli\u003eIP‑X7 water resistance suitable for sweat and light rain\u003c\/li\u003e\n  \u003cli\u003eIncludes S\/M\/L silicone tips for personalized fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Rulefiss Q38 suit active listeners who need a reliable, long‑lasting wireless solution for workouts, commuting and daily use. They’re a good match for runners, gym users, frequent travelers and anyone who wants clear calls, strong bass and a secure fit without complicated setup. If you want a glossy, modern look with smart touch controls, percentage battery readout and wide device compatibility, Q38 provides a balanced feature set at a practical price point.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do Rulefiss Q38 work with iPhone and Android?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — Q38 are compatible with iOS and Android devices, as well as most Bluetooth‑enabled tablets, laptops and TVs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the case extend battery life?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 800 mAh case boosts total playtime to about 56 hours and shows remaining power with an LED percentage display.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413681549469,"sku":"B0DPW3P9VY","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-q38-front-packaging.jpg?v=1781278039"},{"product_id":"rulefiss-wireless-sport-earbuds-bluetooth-5-3-ipx7","title":"Rulefiss Wireless Sport Earbuds Bluetooth 5.3 IPX7","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Q38 are Bluetooth 5.3 sport earbuds with earhooks that deliver 3D Hi‑Fi stereo, long battery life up to 48 hours with charging case, and IPX7 water resistance for workouts.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Rulefiss Q38 Wireless Earbuds are built for active users who want powerful sound, reliable wireless connectivity, and a secure fit for running or gym sessions. They combine a 14.2mm composite diaphragm, AAC\/SBC decoding, and dual mics with CVC 8.0 noise reduction so music and calls remain clear. The earbuds pair quickly via Bluetooth 5.3, fit comfortably with flexible earhooks, and the compact charging case extends listening time to two days.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these earbuds improve everyday listening and calls?\u003c\/h3\u003e\n\u003cp\u003eQ38 focuses on balanced audio and clearer voice pickup for calls. A large dynamic driver expands frequency response and AAC\/SBC support preserves detail. Dual microphones paired with CVC 8.0 reduce ambient noise so callers hear you more clearly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2mm composite diaphragm for richer bass and crisp highs\u003c\/li\u003e\n  \u003cli\u003eAAC and SBC decoders to retain instrumental detail\u003c\/li\u003e\n  \u003cli\u003eTwo built‑in mics with CVC 8.0 noise reduction for clearer calls\u003c\/li\u003e\n  \u003cli\u003eWide 20Hz–20kHz frequency coverage for full-range sound\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow reliable and fast is the wireless connection?\u003c\/h3\u003e\n\u003cp\u003eUsing Bluetooth 5.3 with dual-channel transmission, the Q38 offers quicker pairing, lower latency, and stronger stability than older versions. It supports HSP, HFP, A2DP and AVRCP profiles, making it compatible across iOS, Android and Windows devices. After initial pairing, earbuds reconnect automatically on removal from the case.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.3 for faster, more stable transmission and ~51ms low latency\u003c\/li\u003e\n  \u003cli\u003eDual‑channel transmission improves stereo fidelity and drop resistance\u003c\/li\u003e\n  \u003cli\u003eAuto reconnects when removed from the charging case\u003c\/li\u003e\n  \u003cli\u003eCompatible with smartphones, tablets, laptops and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat charging and battery performance can I expect during workouts?\u003c\/h3\u003e\n\u003cp\u003eThe compact 800mAh charging case extends total playback to about 48 hours while each earbud provides around 6–8 hours per single charge. A Type‑C quick‑charge port powers the case to full in approximately 1.5 hours, and a 10‑minute quick charge can add about two hours of listening time when you're short on time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle earbud runtime: 6–8 hours typical per charge\u003c\/li\u003e\n  \u003cli\u003eCharging case capacity: 800mAh for up to 48 hours combined playtime\u003c\/li\u003e\n  \u003cli\u003eType‑C fast charging; case fully charges in ~1.5 hours\u003c\/li\u003e\n  \u003cli\u003eLED percentage display on case shows remaining battery at a glance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the sport design stay comfortable and secure during exercise?\u003c\/h3\u003e\n\u003cp\u003eQ38 uses a soft, flexible 45° earhook and lightweight 7g earbuds to stay comfortable through long sessions. Three sizes of silicone tips help you find the right seal, while IPX7 water resistance protects against sweat and rain, making these earbuds suitable for running and gym use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUltra‑light 7g earbuds with flexible earhooks for stable fit\u003c\/li\u003e\n  \u003cli\u003eComes with S, M, L high‑quality silicone ear tips included\u003c\/li\u003e\n  \u003cli\u003eIPX7 waterproofing for protection against sweat and showers\u003c\/li\u003e\n  \u003cli\u003eGlossy, smooth exterior with touch controls for on‑the‑go operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Rulefiss Q38 is aimed at active listeners who need secure, sweat‑resistant earbuds with extended battery life and reliable Bluetooth performance. They're ideal for runners, gymgoers, commuters and anyone who wants clearer calls and fuller sound without bulky headphones. If you value a snug earhook fit, quick charging, and a refined appearance with touch controls, these sport earbuds are a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the Rulefiss Q38 battery last with the case?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each earbud lasts about 6–8 hours; the 800mAh case extends total playback to roughly 48 hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these earbuds waterproof for workouts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Q38 has IPX7 water resistance, protecting against sweat and rain during exercise.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413708681373,"sku":"B0CMWFVV15","price":50.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-q38-front-packaging_05d4525b-ada5-4f8c-915f-ed7eaf09e3b0.jpg?v=1781279167"},{"product_id":"rulefiss-q38-wireless-earbuds-bluetooth-5-3-sport","title":"Rulefiss Q38 Wireless Earbuds Bluetooth 5.3 Sport","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Q38 Wireless Earbuds are sport-focused Bluetooth 5.3 headphones with earhooks, IP7 waterproofing, 48 hours total battery life and tuned 3D stereo sound for workouts and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese earbuds combine a large 14.2mm driver, AAC\/SBC decoding and dual microphones with CVC 8.0 noise reduction to deliver clear music and call performance. The Q38 set pairs automatically, shows precise battery percentage on a dual LED display, and uses a flexible 45° earhook plus three silicone tip sizes to stay secure during runs, gym sessions or commuting. Lightweight construction, fast Type-C charging and broad device compatibility make them practical for phones, tablets and laptops.\u003c\/p\u003e\n\n\u003ch3\u003eHow do the Q38 earbuds improve sound and call clarity?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 prioritizes balanced audio and intelligible voice calls. A 14.2mm composite diaphragm gives fuller lows and crisp highs while AAC\/SBC support refines digital playback. Dual onboard microphones with CVC 8.0 reduce background noise so callers and listeners hear more of the voice and less ambient sound.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3D stereo tuning with increased audio frequency range (20Hz–20kHz)\u003c\/li\u003e\n  \u003cli\u003eAAC and SBC decoding for clearer streaming across devices\u003c\/li\u003e\n  \u003cli\u003eTwo microphones plus CVC 8.0 noise suppression for clearer calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Q38 reliable for sports and outdoor use?\u003c\/h3\u003e\n\u003cp\u003eDesign choices focus on stability and durability during movement and moisture exposure. The soft, ultra-light 45° earhook adapts to ear shape, and a single earbud weighs about 7g for extended comfort. IP7 waterproofing protects against sweat and rain so you can train without worry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlexible earhook design for secure fit while running or at the gym\u003c\/li\u003e\n  \u003cli\u003eThree silicone tip sizes (S\/M\/L) for a personalized seal\u003c\/li\u003e\n  \u003cli\u003eIP7-rated protection against sweat and light water exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how fast does it charge?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 delivers a full-day-plus battery experience thanks to an 800 mAh charging case that extends playtime up to 48 hours. Single-earbud runtime is typically 6–8 hours depending on volume and usage. The case recharges quickly via Type-C in about 1.5 hours and shows remaining power as a percent on a dual LED display for accurate monitoring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6–8 hours per single charge; up to 48 total hours with charging case\u003c\/li\u003e\n  \u003cli\u003e800 mAh compact case with dual LED percentage display\u003c\/li\u003e\n  \u003cli\u003eFast Type-C charging; case fully charges in ~1.5 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds easy to use with different devices?\u003c\/h3\u003e\n\u003cp\u003eYes — Bluetooth 5.3 and dual-channel transmission improve connection speed and stability, lowering latency for media and calls. They support standard Bluetooth profiles (HSP, HFP, A2DP, AVRCP) so they work with iOS, Android and Windows systems. Smart touch controls let you manage playback, volume and voice assistants hands-free.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.3 with ~100ms low latency and improved stability\u003c\/li\u003e\n  \u003cli\u003eAutomatic reconnection after first pairing with the charging case\u003c\/li\u003e\n  \u003cli\u003eTouch controls for play\/pause, volume, calls and voice assistant access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Rulefiss Q38 is aimed at active users who want a secure, weather-resistant earbud that balances strong bass with clear mids and voice pickup. It suits runners, gym-goers, commuters and anyone needing long battery life with quick charging and simple touch controls. If you prioritize a snug fit, reliable call performance and multi-day battery backup without bulky over-ear cups, the Q38 offers a compact, sport-ready solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the Rulefiss Q38 battery last on a single charge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each earbud plays about 6–8 hours; the 800 mAh case extends total runtime up to 48 hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the Q38 earbuds waterproof for workouts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they have an IP7 rating suitable for sweat and rain during exercise.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48413720871069,"sku":"B0CRNB4DS4","price":50.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-q38-front-packaging_244c0dda-cc73-4f8a-94f4-679fc622f5ec.jpg?v=1781279547"},{"product_id":"wireless-earbuds-sport-bluetooth-5-4-headphones-2026-new","title":"Wireless Earbuds, Sport Bluetooth 5.4 Headphones 2026 New","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Wireless Earbuds are sport-focused Bluetooth 5.4 earphones with earhooks, ENC quad mics, up to 75 hours total playtime, and IPX7 sweat resistance for training and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese 2026-model Rulefiss Bluetooth earbuds pair fast, deliver enhanced bass and clear calls, and are built to stay put during intense workouts. Designed around a 14.2mm triple-layer driver and advanced noise reduction, they combine long battery life, quick USB-C charging, and tactile touch controls in a compact, sweatproof package for Android and iOS devices.\u003c\/p\u003e\n\n\u003ch3\u003eHow reliable is the wireless connection?\u003c\/h3\u003e\n\u003cp\u003eRulefiss uses Bluetooth 5.4 for a stable, low-latency link and automatic one-step pairing to previously connected devices. You can expect consistent audio up to approximately 33 feet with fewer dropouts than older Bluetooth versions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.4 for stronger signal and reduced interference\u003c\/li\u003e\n  \u003cli\u003eAutomatic reconnection when earbuds are removed from the case\u003c\/li\u003e\n  \u003cli\u003eApproximately 33 ft (10 m) typical wireless range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the sound and call quality actually offer?\u003c\/h3\u003e\n\u003cp\u003eThe earbuds use 14.2mm triple-layer diaphragm drivers engineered for pronounced low-end response and clear mids and highs. Four ENC (environmental noise cancellation) microphones improve voice clarity and cut background noise during calls without altering natural vocal tone.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge triple-layer drivers for deeper bass and balanced mids\u003c\/li\u003e\n  \u003cli\u003eFour HD microphones with ENC to reduce ambient noise\u003c\/li\u003e\n  \u003cli\u003eOptimized sound guide architecture for clearer separation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will the battery last and how fast does it charge?\u003c\/h3\u003e\n\u003cp\u003eA single earbud charge delivers up to 15 hours of playback, and the compact charging case provides an additional three full recharges for about 75 hours total. Rapid charging via USB-C gives roughly 2 hours of playback from a 10-minute top-up when you’re short on time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 15 hours per single charge\u003c\/li\u003e\n  \u003cli\u003e75 hours total using the portable charging case\u003c\/li\u003e\n  \u003cli\u003e10-minute fast charge yields about 2 hours playback\u003c\/li\u003e\n  \u003cli\u003eDual LED display shows both case and earbud power levels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill they stay comfortable and secure during activity?\u003c\/h3\u003e\n\u003cp\u003eErgonomically shaped earbuds combine with three sizes of silicone tips and flexible earhooks to create a secure fit that resists slipping during runs or gym sessions. An IPX7-rated shell protects against sweat and splashes, so you can train in challenging conditions without worry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree ear tip sizes (S\/M\/L) for a custom seal and noise isolation\u003c\/li\u003e\n  \u003cli\u003eFlexible earhooks for added stability during movement\u003c\/li\u003e\n  \u003cli\u003eIPX7 waterproofing for sweat and light exposure protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Rulefiss Wireless Earbuds suit active listeners who prioritize secure fit, extended battery life, and clear hands-free calls. They’re a fit for runners, gym-goers, commuters, and anyone who wants a durable, feature-rich Bluetooth earphone set that works across Android, iOS, laptops, and other Bluetooth-enabled devices without fuss.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these earbuds compatible with both Android and iPhone?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Rulefiss earbuds use standard Bluetooth and work with Android, iOS, laptops, TVs, and most Bluetooth-enabled devices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does a quick charge last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A 10-minute fast charge provides about 2 hours of playback, useful for short outings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48424195424413,"sku":"B0FXDXW2SW","price":56.41,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-front-packaging_2eb63ac5-c97c-4bb2-b34c-b99e3566f451.jpg?v=1781366150"},{"product_id":"rulefiss-wireless-sport-earbuds-bluetooth-5-3-over-ear","title":"Rulefiss Wireless Sport Earbuds Bluetooth 5.3 Over‑Ear","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Wireless Earbuds Sport are sweat-resistant, earhook Bluetooth 5.3 headphones built for long workouts and all-day listening with Hi‑Fi bass, smart LED battery display, and up to 48 hours of playtime.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Rulefiss sport earbuds package modern wireless features—Bluetooth 5.3 connectivity, a 14.2 mm driver for fuller low end, and an 800 mAh charging case—into a secure over‑ear design. They’re optimized for active users who want stable fit during runs, clear calls via an HD mic, and rugged protection with an IP7 waterproof rating for rain and sweat. The integrated LED display helps you track remaining charge at a glance, while noise reduction technology improves voice clarity without promising medical outcomes.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these earbuds stay put during workouts?\u003c\/h3\u003e\n\u003cp\u003eRulefiss uses flexible earhooks and multiple ear tip sizes so the earbuds remain comfortable and secure through vigorous movement. The over‑ear loop distributes weight and resists slipping, making them suitable for running, cycling, and gym sessions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlexible earhooks for a locked-in fit\u003c\/li\u003e\n  \u003cli\u003eMultiple silicone tips included for customized seal\u003c\/li\u003e\n  \u003cli\u003eLightweight build to reduce ear fatigue\u003c\/li\u003e\n  \u003cli\u003eStability-focused shape for lateral motion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio features support better sound during calls and music?\u003c\/h3\u003e\n\u003cp\u003eThese earbuds combine a 14.2 mm driver and Hi‑Fi stereo tuning to prioritize clear mids and punchy bass, delivering fuller sound than standard earbud speakers. An HD microphone and noise-cancelling technology reduce background interference so voices come through more intelligibly on calls.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2 mm dynamic drivers for deeper bass response\u003c\/li\u003e\n  \u003cli\u003eHi‑Fi stereo tuning for balanced audio across frequencies\u003c\/li\u003e\n  \u003cli\u003eHD mic plus noise suppression for clearer calls\u003c\/li\u003e\n  \u003cli\u003eLow-latency Bluetooth 5.3 for stable streaming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will the battery last and how do I check charge levels?\u003c\/h3\u003e\n\u003cp\u003eWith the included 800 mAh charging case, Rulefiss earbuds offer up to 48 hours of cumulative playtime depending on volume and usage patterns. The case’s LED display shows remaining battery at a glance, making it easy to plan recharges before heading out.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 48 hours total playtime with recharge case\u003c\/li\u003e\n  \u003cli\u003eCompact 800 mAh charging case for multiple refills\u003c\/li\u003e\n  \u003cli\u003eLED battery display on the case for clear charge info\u003c\/li\u003e\n  \u003cli\u003eFast Bluetooth 5.3 pairing reduces reconnect wait time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these earbuds suitable for phones, tablets, and laptops?\u003c\/h3\u003e\n\u003cp\u003eYes — Rulefiss Sport earbuds work across Android and iOS smartphones, tablets, and most laptops with Bluetooth support. The Bluetooth 5.3 connection improves compatibility and helps maintain a steady link for streaming, conferencing, and gaming.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.3 for wide device compatibility\u003c\/li\u003e\n  \u003cli\u003eWorks with Android, iOS, tablets, and Bluetooth laptops\u003c\/li\u003e\n  \u003cli\u003eAutomatic reconnection after initial pairing\u003c\/li\u003e\n  \u003cli\u003eLow-latency performance for video and casual gaming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? These Rulefiss Wireless Earbuds Sport are aimed at active listeners who want durable, sweat‑resistant performance and long battery life without sacrificing sound quality. Choose them if you need secure earhooks for exercise, clear call performance with an HD mic, and the convenience of an LED charging display for everyday use across phones, tablets, and laptops.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What devices are compatible with Rulefiss Wireless Earbuds Sport?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They work with most Bluetooth-enabled Android and iOS phones, tablets, and laptops using Bluetooth 5.3.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the battery last with the charging case?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Up to 48 hours of combined playtime depending on volume and usage; the case has an LED battery display.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48444420522141,"sku":"B0CHYD2X8X","price":50.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-front-packaging_a181df37-a90f-4c74-8caf-f41cc874b734.jpg?v=1781543338"},{"product_id":"rulefiss-q38-wireless-earbuds-bluetooth-5-4-sport-ipx7","title":"Rulefiss Q38 Wireless Earbuds Bluetooth 5.4 Sport IPX7","description":"\u003cp\u003e\u003cstrong\u003eRulefiss Q38 are cordless sport earbuds with Bluetooth 5.4, 60 hours total playtime, ENC mics and an IPX7-rated sweatproof earhook design for workouts and daily use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Rulefiss Q38 Wireless Earbuds are engineered for active listeners who want dependable sound, long battery life and a secure fit. Combining a 14.2mm composite diaphragm for wide-range Hi‑Fi audio with AAC\/SBC decoding and ENC voice processing, these buds aim to deliver detailed music and clearer calls. The compact 800mAh charging case supplies extended runtime while a fast Type‑C recharge keeps you moving between sessions.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these earbuds perform for music and calls?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 focuses on balanced audio and clearer call quality rather than exaggerated bass. A large driver reproduces frequencies from low to high, while four built-in microphones and ENC (environmental noise cancellation) preserve voice clarity on calls.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e14.2mm composite diaphragm for 18Hz–25kHz frequency coverage\u003c\/li\u003e\n  \u003cli\u003eAAC\/SBC decoding for better fidelity on compatible devices\u003c\/li\u003e\n  \u003cli\u003eFour microphones with ENC reducing background noise for clearer calls\u003c\/li\u003e\n  \u003cli\u003e3D bass and layered instruments for a fuller listening experience\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill they stay put and survive sweat or rain?\u003c\/h3\u003e\n\u003cp\u003eYes—the Q38 earbud design centers on an ultra-light 45° earhook and three ear tip sizes so the earbuds remain secure during movement. IP‑X7 water resistance shields the electronics from sweat and light downpours, making them suitable for running, gym sessions and outdoor workouts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSoft, flexible 45° earhooks for a snug, anti-slip fit\u003c\/li\u003e\n  \u003cli\u003eThree silicone ear tip sizes (S\/M\/L) for customized sealing and comfort\u003c\/li\u003e\n  \u003cli\u003eSingle earbud weight ~8g keeps pressure off the ear for long wear\u003c\/li\u003e\n  \u003cli\u003eIP‑X7 protection against sweat and rain exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how quickly does it recharge?\u003c\/h3\u003e\n\u003cp\u003eThe Q38 offers industry-friendly uptime: each earbud provides several hours on one charge, and the included 800mAh case increases total playtime up to about 60 hours. The case features a percentage LED display so you can monitor remaining power, and Type‑C fast charging replenishes the case quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6–8 hours per single earbud charge depending on use\u003c\/li\u003e\n  \u003cli\u003eUp to 60 total hours with the 800mAh charging case\u003c\/li\u003e\n  \u003cli\u003eLED dual power display shows case and earbud percentages (1%–100%)\u003c\/li\u003e\n  \u003cli\u003eQuick Type‑C charging: case fully charges in about 1.5 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre they easy to use and compatible with my devices?\u003c\/h3\u003e\n\u003cp\u003eQ38 earbuds use Bluetooth 5.4 with dual‑channel transmission for faster, more stable connections and low latency suitable for video and casual gaming. A touch panel on each earbud handles playback, volume, calls and voice assistant activation so hands-free control is straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBluetooth 5.4 improves stability and reduces interference; ~41ms low latency\u003c\/li\u003e\n  \u003cli\u003eAutomatic reconnection after first pairing with supported devices\u003c\/li\u003e\n  \u003cli\u003eTouch controls for play\/pause, volume, calls, and activating voice assistants\u003c\/li\u003e\n  \u003cli\u003eWorks with iOS, Android, TV, PC, tablets and most Bluetooth devices (not gaming consoles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Rulefiss Q38 suits active listeners who need reliable sound, long battery life and a secure, sweat-resistant fit—runners, gym-goers, commuters and anyone who prefers compact earbuds with a visible battery readout. If you want earbuds that balance audio quality, call clarity and endurance without complex setup, the Q38 is designed to meet those needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the Q38 battery last on a single charge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each earbud runs about 6–8 hours per charge; the 800mAh case extends total playtime up to approximately 60 hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the earbuds waterproof for workouts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the Q38 has an IP‑X7 rating for protection against sweat and rain, suitable for running and gym use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":48444424913053,"sku":"B0FKGSLPCT","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/rulefiss-q38-front-packaging_da569216-2070-49eb-9fd0-05d3cdbb4cb7.jpg?v=1781543506"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/collections\/rulefiss-wireless-earbuds-case-pairing.jpg?v=1790934271","url":"https:\/\/nexoltic.com\/collections\/rulefiss.oembed","provider":"Nexoltic","version":"1.0","type":"link"}