Features: 1.With the 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. 2.IPX8 waterproof rating for working underwater, suitable for swimmers and allows you to wear both swim cap and goggles, it is also suitable for running, cycling, fitness, etc. to resist sweat and rain. 3.Built-in 32GB memory, connect your computer and headphones using the provided magnetic charging cable, Store your favorite music to your headset device, MP3 mode lets you enjoy music anywhere, anytime, without connecting your phone and other devices. 4.Equipped with the Bluetooth 5.3 chip, which greatly improves the communication speed, communication distance and stability, bringing you a gorgeous music experience. (Tip: Bluetooth can't transmit underwater, please use MP3 mode to play underwater) 5.Using 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. Product model: X7 Color: Black red, black, Orange White Appearance material: ABS Horn type: bone conduction vibrator Waterproof performance: Ipx8 Equipment weight: 25g Bluetooth version: 5.3 Internal memory: 32GB Battery capacity: 200ma Input voltage: 120ma 1.2A Battery life: 4-8 hours Charging time: 2 hours Standby time: 300 hours Product accessories: earphones * 1, charging data cable * 1, instruction manual * 1