Wireless bluetooth headphones 50 Bluetooth wireless headphones use 50 more advanced bluetooth technology to provide a faster and faster and stable connection a more realistic sound and reduced energy consumption The unique stereo design can offer high quality sound which allows you to enjoy High quality wireless music at any time and anywhere Advanced Bluetooth Sports Warning Route Route And voice calls each headset is equipped with a microphone so that you can be better during the call collects and transmission of sound to ensure that the other party can listen more clearly.