Fashion and dynamic design， Bluetooth 4.0 sport headset
CSR Bluetooth chip， intelligent dual noise reduction
Support connecting 2 smart phones at the same time
Control music and calls from the headphone
Intelliget voice prompt， simple operation
Volume +/- control， Previous /next control， short press for play/pause
Built-in rechargeable battery， charging by USB
Suitable for devices with Bluetooth function， such as mobile phones， etc.