{"product_id":"nank-runner4-bone-conduction-swimming-headphones","title":"NANK Runner4 Bone Conduction Swimming Headphones","description":"\u003cp\u003e\u003cstrong\u003eNANK Runner4 are open-ear bone conduction headphones built for swimming, running and cycling — they combine IP68 waterproofing, 16GB onboard MP3, and Bluetooth 5.4 in a lightweight titanium frame.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese headphones deliver audio through bone conduction so your ear canals stay open to ambient sound while you listen. With a skin-friendly silicone back bridge and a durable titanium frame, the Runner4 is designed to stay comfortable during long workouts and resist sweat, rain and even full submersion. Choose Bluetooth mode for everyday runs or MP3 mode for uninterrupted underwater listening.\u003c\/p\u003e\n\n\u003ch3\u003eHow do Runner4 headphones stay safe and comfortable during exercise?\u003c\/h3\u003e\n\u003cp\u003eThe Runner4 combines a flexible silicone back bridge and a lightweight titanium frame to provide a secure, all-day fit that resists slipping. The open-ear design preserves awareness of surrounding sounds, which is useful on busy roads and trails.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eskin-friendly silicone back bridge for pressure relief\u003c\/li\u003e\n  \u003cli\u003etitanium frame for strength with low weight\u003c\/li\u003e\n  \u003cli\u003eopen-ear bone conduction keeps ear canals free\u003c\/li\u003e\n  \u003cli\u003eIP68 protection against sweat, rain, and submersion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use these headphones for swimming and underwater listening?\u003c\/h3\u003e\n\u003cp\u003eYes — the Runner4 are rated IP68 and use nano-coating plus ultrasonic seals to block water. For reliable underwater playback, use the built-in 16GB MP3 mode because Bluetooth signals don’t travel well through water.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP68 waterproof rating for full submersion\u003c\/li\u003e\n  \u003cli\u003e16GB internal storage holds up to ~2000 songs\u003c\/li\u003e\n  \u003cli\u003eMP3 mode eliminates reliance on Bluetooth when swimming\u003c\/li\u003e\n  \u003cli\u003ewaterproof construction prevents sweat and moisture damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat audio and connectivity features improve sound and privacy?\u003c\/h3\u003e\n\u003cp\u003eRunner4 uses the NANK ResoVibe and OT leakage reduction tech to limit sound leakage and improve clarity during outdoor use. Bluetooth 5.4 offers a stable, low-latency wireless connection for compatible devices when not underwater.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNANK 3rd ResoVibe sound shaping for clearer bone conduction audio\u003c\/li\u003e\n  \u003cli\u003eOT leakage reduction 3.0 minimizes sound escaping to others\u003c\/li\u003e\n  \u003cli\u003eBluetooth 5.4 for stable wireless pairing and reduced latency\u003c\/li\u003e\n  \u003cli\u003eautomatic echo and wind-noise suppression while running\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how quickly does it charge?\u003c\/h3\u003e\n\u003cp\u003eThe Runner4 delivers up to 8 hours of continuous playback on a 1.6-hour full charge and supports a fast 10-minute quick charge to deliver about 2 hours of use. The battery supports extended sessions for multi-hour workouts and travel without frequent recharging.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eup to 8 hours playtime per full charge\u003c\/li\u003e\n  \u003cli\u003e1.6 hours for a complete recharge\u003c\/li\u003e\n  \u003cli\u003e10-minute quick charge yields roughly 2 hours playback\u003c\/li\u003e\n  \u003cli\u003elanguage mode toggle for Chinese\/English via button combo\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The NANK Runner4 suits athletes and active users who need a water-ready, open-ear audio solution: swimmers who want onboard MP3 playback, runners and cyclists who want ambient awareness and minimal sound leakage, and anyone who prefers a lightweight titanium frame for extended wear. If you swim regularly, train outdoors, or dislike in-ear plugs, the Runner4 offers a practical mix of comfort, durability, and standalone music playback.\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: Can I swim with NANK Runner4 headphones?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are IP68 rated and swim-capable; use MP3 mode underwater because Bluetooth won’t work well under water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many songs fit on the 16GB memory?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: About 1,500–2,000 songs depending on file size and bitrate stored directly on the device.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NANK","offers":[{"title":"Default Title","offer_id":48449175355549,"sku":"B0DPQ5QHG8","price":111.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/nank-runner4-front-packaging.jpg?v=1781628891","url":"https:\/\/nexoltic.com\/products\/nank-runner4-bone-conduction-swimming-headphones","provider":"Nexoltic","version":"1.0","type":"link"}