B18 Bone Conduction Bluetooth V4.1 Sports Headphone Earhook Headset, For iPhone, Samsung, Huawei, Xiaomi, HTC and Other Smart Phones or Other Bluetooth Audio Devices(Gold) Tag-Others and accessories such as propellers

and accessories such as propellers

The product adopts a fully enclosed design

6 degree(N)～80

The skin-friendly and soft material is used to reduce the tenderness on both sides of the forehead when wearing it

B18 Bone Conduction Bluetooth V4.1 Sports Headphone Earhook Headset, For iPhone, Samsung, Huawei, Xiaomi, HTC and Other Smart Phones or Other Bluetooth Audio Devices(Gold) Tag-Others and accessories such as propellers1. Bluetooth 4. 1 Bone conduction headphone 2. Small and covert, more comfortable. is very light, painless wearing in long time use, latest concept ergonomics design fully fit outside the auricle. 3. Loudspeaker close to the ear but it is not inside the ear. It will help listens to the surroundings at the same time, let you keep safety for biking, running, driving and more portable for business, work. 4. Be free to choose exchange your left and right