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(Blue) 15DecTag-iPhone 15 Pro Cases 1/3 lighter than aluminum selfie

1/3 lighter than aluminum selfie sticks of the same size

adjustable in two levels

Pro-M battery capacity: 1500 mAh

can realize high-speed data synchronization

Interface: DC 4

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(Blue) 15DecTag-iPhone 15 Pro Cases 1/3 lighter than aluminum selfie1. 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