Wireless Bluetooth headset with handsfree function Built-in rechargeable battery (up to 6 hour music playback) - Wireless bluetooth headset - Easy to use, pair with your mobile phone and you are ready to listen to music, and take calls with the headphones on (built-in microphone) - Operating range up to 10 meters - Rechargeable battery built-in - 300mAh (charge time app. 2 hours) - Play music time up to 6 hours - Standby time up to 180 hours - Bluetooth V4.2 - Supports HFT, A2DP & AVRCP