Product model: -8 hours Charging time: 2 hours Standby time: 300 hours Product accessories: Headphones * 1, Charging data cable * 1. 1. Open bone conduction technology allows you to be aware of your surroundings and things while wearing it. It is safer and cleaner than traditional in-ear headphones and reduces ear strain to prevent hearing damage. 2. IPX8 waterproof rating for working underwater, suitable for swimmers and allows you to wear both types of swimming caps and goggles, it is also suitable for running, cycling, fitness, etc. to resist sweat and rain. 3. Built-in 32 GB memory, Connect your computer and headphones with the included magnetic charging cable, Store your favorite music on your headset device. In MP3 mode, you can enjoy music anywhere, anytime without connecting your phone or other devices. 4. Equipped with Bluetooth 5.3 chip, which significantly improves communication speed. Communication distance and stability, giving you a beautiful music experience. (Tip: Bluetooth cannot transmit underwater, use MP3 mode to play underwater) 5. Uses memory titanium alloy material, free folding without deformation, ergonomic design, long time to wear without discomfort. The large capacity battery can play for 8 hours, wearing open ears allows you to enjoy music uninterrupted during long working hours or driving.