DescriptionBone Conduction Headphones: With open-ear bone conduction technology, you can enjoy high-quality sound while remaining aware of your surroundings. Safer and cleaner than traditional in-ear headphones.Professional IPX8 Waterproof: These headphones feature the highest waterproof rating for swimmers and can be worn with swimming caps and goggles. They are also ideal for running, fitness, cycling, and more, providing protection against rain and sweat.Enhanced Bluetooth Connectivity: Equipped with the latest Bluetooth 5.3 chip, they support most Bluetooth-pairable devices with near-zero latency and low power consumption, ensuring a great musical experience for you. Note: Bluetooth cannot transmit underwater, please use MP3 mode for playback underwater.MP3 Mode: These bone conduction headphones have a built-in MP3 player with 32GB of memory, storing up to 8,000 songs. You can easily update your playlists by connecting the headphones to your computer with the included magnetic charging cable and dragging your favorite audio files to the headphone's memory folder. Enjoy your favorite tunes on the go without hassle, no need for extra devices.