【Open-Ear Design & Safety】The open-ear design of the NANK Ultra clip on earbuds keeps you aware of your surroundings while DS 2.0 Directional Sound Delivery minimizes sound leakage. Enjoy clear audio without compromising safety during runs, cycling, or commutes❤️❤️Switch between Chinese/English: When powered on, press either side's touch button 5 times❤️❤️ 【Breathable & Comfort】Weighing just 5.3g per Earbud, these open ear clip on headphones offer all-day comfort with an airflow-friendly design. The lightweight build and ergonomic shape ensure zero pressure on your ears—perfect for workouts or long listening sessions 【Rock-Solid Fit for Active Lifestyles】Engineered with buckle 2.0 design and C-Hook technology, NANK clip-on earbuds stay put through intense movement—whether you’re sprinting, lifting, or sweating it out. No slips, no adjustments needed 【Premium Sound & Clear Calls】The open-ear earbuds feature a titanium-ceramic diaphragm and triple-tuned acoustic system produce deep bass and crisp highs. AI-powered call noise cancellation blocks wind and background chatter, so your voice always comes through clearly 【IPX5 Sweatproof & Bluetooth 5.4】Ultra clip bluetooth headphones are built to handle sweat and rain with IPX5 waterproof, plus bluetooth 5.4 delivers ultra-stable connectivity with 40ms low latency (Ideal for gaming and syncing with videos) 【24-Hour Battery Life】Get 8 hours per charge and 24 hours total with the compact charging case（The usage time can reach 40 hours at 40% volume）—enough to power through workouts, workdays, and cross-country flights without hunting for an outlet.The warranty period is one year. If you have any questions during use, please contact NANK customer service as soon as possible and we will reply as soon as possible within 24 hours Upgrade your audio experience with our NANK Ultra open-ear clip on earbuds, designed for ultimate comfort, situational awareness, and all-day wear. Unlike traditional earbuds that block your ear canal, these innovative clip-on headphones rest gently on your ears, delivering clear sound without discomfort or pressure. Perfect for workouts, commuting, or extended use, they stay securely in place while keeping you aware of your surroundings.