[Bone Conduction Headphones - With the new open-ear bone conduction technology allows you to be alert to your surroundings and things while wearing them. It is safer and cleaner than traditional in-ear headphones and reduces the burden on the ear to avoid hearing damage. Professional Grade Waterproof - IPX8 waterproof rating for working underwater suitable for swimmers and allows you to wear both swim cap and goggles. Professionally waterproof and moisture resistant it is also suitable for running cycling fitness etc. to resist sweat and rain. MP3 Mode - Built-in 32GB memory connect your computer and headphones using the provided magnetic charging cable it will read the USB flash drive and you can copy your computer songs to the flash drive. Store your favorite music to your headset device MP3 mode lets you enjoy music anywhere anytime without connecting your phone and other devices. "Faster And More Stable Bluetooth Transmission - Equipped with the latest Bluetooth 5.3 chip which greatly improves the communication speed communication distance and stability with the advantages of near zero latency and low power consumption bringing you a gorgeous music experience. (Tip: Bluetooth cant transmit underwater please use MP3 mode to play underwater)" Multifunctional Headphones - Using high-strength memory titanium alloy material free folding without deformation ergonomic design long time wearing no discomfort. Large capacity battery can play for 8 hours open ear wear even allows you to enjoy music during long hours of work or driving without being affected.]