Industry-leading swimming bone conduction headphones 10H Playing Time Adopts magnetic fast charging technology, charging for 2 hours, up to 10 Days of super standby, 10 hours of uninterrupted voice calls and music playback Open-Ear Design Perceive the surrounding environment to keep safe during running, cycling, hiking Smart Button Control Easy control to increase/decrease volume, play next/previous songs, answer/hung up call, etc Upgrade 3 Modes MP3 mode: Built-in 16GB memory card Bluetooth mode: Bluetooth 5.3 chip Game mode: 35/ms non-sensing delay Built-in microphone ensures call quality and stable transmission. Use the headphones with the upgraded earbuds, let you enjoy the charm of music in sports. Equipped with the most advanced Bluetooth 5.3 chip, stable link, low power consumption, satisfying long-term use, suitable for most Bluetooth devices. Made of lightweight high-quality nitinol alloy, weighing only 0.06lb (29g), making it painless to wear for extended periods of time. Also works well with glasses. Faster transmission by magnetic charging port, can be fully charged in 1.5 hours. IP68 waterproof charging port design, charging is safer. (A full charge is required for the first use) Read more Product specifications Waterproof: IP68 Bluetooth version: 5.3 Microphone sensitivity : -42dB Connect distance: 10m/33ft Built-in memory: 16G Battery capacity: 180mAh Playback time: Up to 10 hours (70% volume) Standby time: About 240 hours Charging time: About 2 hours Download Songs to Headphones: Connect the charging cable with computer and earphones, when the headphones' disk can be accessed, copy songs to headphones from PC. Package includes: 1* Bone Conduction Headphones 1* Charging cable 1* User Manual 1 Pair Upgraded Earplugs Read more