Main functions: Waterproof, noise reduction, bone conduction, ultra long battery life, call function, supports music Features: Adjustable angle bone conduction headphone head; DT9.0 Directional sound transmission, precise and truly sound - proof. Liquid skin-friendly material, comfortable for long wear, pain-free; Bluetooth 5.4, unlock a new realm of stability; With IPx8 deep-level waterproof rating, it can be used for swimming and diving; Equipped with 32GB internal memory, it can store ten thousand songs. Underwater noise- cancelling bone conduction, water resistance is increased by 300%. With an innovative pea - shaped structural design, the headset is extremely lightweight, weighing only 21g. CVC High-Definition Call, filter out environmental noise in real time. Titanium alloy memory titanium wire, it can be bent arbitrarily at 36o without deformation. It is compatible with the connection of devices such as mobile phones, tablets and computers, enabling seamless multitasking without any stress. Package included: 1 x earphone 1 x Magnetic suction charging cable