{"product_id":"sennheiser-cx-300s-in-ear-headphones-black","title":"Sennheiser CX 300S In-Ear Headphones - Black","description":"\u003cp\u003e\u003cstrong\u003eThe Sennheiser CX 300S are wired in-ear earphones that deliver detailed audio, boosted bass response, and a one-button smart remote for call and music control.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and engineered for clarity, these CX 300S earphones use Sennheiser transducer technology to reproduce music with precision while offering a snug in-ear seal to reduce background noise. They include multiple ear adapter sizes so you can match fit and comfort, plus a 3.5 mm connector for universal wired compatibility with phones, tablets and laptops.\u003c\/p\u003e\n\n\u003ch3\u003eHow do the CX 300S improve my listening experience?\u003c\/h3\u003e\n\u003cp\u003eThe CX 300S focus on accurate sound reproduction with an emphasis on punchy low frequencies. Their precision drivers reveal detail across genres while the in-ear design enhances perceived bass and isolates ambient noise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision transducer technology for clearer mids and highs\u003c\/li\u003e\n  \u003cli\u003eEnhanced bass tuning for fuller low-end impact\u003c\/li\u003e\n  \u003cli\u003eIn-ear seal that passively reduces surrounding noise\u003c\/li\u003e\n  \u003cli\u003eWired 3.5 mm connector for lossless, low-latency audio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these earphones fit comfortably and stay secure?\u003c\/h3\u003e\n\u003cp\u003eThe CX 300S come with four ear adapter sizes (XS, S, M, L) to help you find the best seal and comfort. A proper fit both improves comfort for long listening sessions and ensures the intended sound signature and call performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour silicone ear tip sizes included for personalized fit\u003c\/li\u003e\n  \u003cli\u003eIn-ear form factor designed for stable wear during daily use\u003c\/li\u003e\n  \u003cli\u003eSwap tips to optimize comfort and achieve the correct acoustic seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the one-button smart remote work with calls and music?\u003c\/h3\u003e\n\u003cp\u003eThe inline one-button remote offers straightforward control: play or pause tracks and answer or end calls without reaching for your device. It’s designed for compatibility with a wide range of smartphones and tablets that use a standard 3.5 mm headset connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-button control for play\/pause and call management\u003c\/li\u003e\n  \u003cli\u003eWorks seamlessly with most devices using a 3.5 mm jack\u003c\/li\u003e\n  \u003cli\u003eEliminates the need to fumble with your phone during quick tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about care and getting the best sound?\u003c\/h3\u003e\n\u003cp\u003eSound quality depends on fit and correct wear. If the earbud tip doesn’t match your ear canal size or the headset sits improperly, you may lose bass depth or call clarity; try different tips until the music feels balanced and calls are clear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTry all included ear tips to find the snug, acoustic seal\u003c\/li\u003e\n  \u003cli\u003eWipe eartips regularly to keep them clean and maintain sound quality\u003c\/li\u003e\n  \u003cli\u003eStore in a case or pouch to prevent cable tangles and protect the earpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Sennheiser CX 300S suit listeners who want studio-informed sound in a compact wired package — commuters, students, and anyone who prefers a dependable 3.5 mm connection with simple inline controls. They’re ideal if you value clear detail and a firmer low end without bulky over-ear gear, and if you appreciate multiple ear tip sizes to tune fit and isolation.\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 CX 300S work with my smartphone?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — they use a standard 3.5 mm jack compatible with most phones, tablets and laptops that include a headphone port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What ear tip size should I use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Try the included XS, S, M and L tips; choose the tip that forms a snug seal for best bass and call clarity.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":48436797735069,"sku":"B07N1YLC23","price":70.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/sennheiser-cx300s-front-view.jpg?v=1781455543","url":"https:\/\/nexoltic.com\/products\/sennheiser-cx-300s-in-ear-headphones-black","provider":"Nexoltic","version":"1.0","type":"link"}