Bewinner Portable Bluetooth Headphones Wireless Headphone

Product Features: Color:Gold,Black(optional) Package Weight: 15g Bluetooth version for Bluetooth chip: Rs 4.1 protocol Bluetooth Protocol: A2DP AVRCP HFP HSP Battery: 3.7V 60mAh Charging power: 5V/80mAh Sensitivity: 103dB +/- 3dB Impedance: 32MW Transmission distance: 10m Frequency: 2.4GHz Talk time: approx. 2 hours. Duration of the song: approx. 3 hours in standby mode: approx. 160 hours. Function: Playback / pause / music change. Volume control, language change in Chinese and English. Registration of the phone number. Answer/Create/Reject/Redial - Voice Control Displays the electrical volume of the iOS system. Supports WeChat, car navigation, QQ voice voice and other software. Instructions: Power On/Off: Press and hold the power button for 3 seconds. Turn on pairing mode: press and hold the power button for 5 seconds. Volume +/-: Press the volume/volume button to switch between Chinese and English: press the power button twice in pairing mode. Play/Pause: Press the power button. Previous song: press and hold the volume button for 2 seconds. Next song: press and hold the volume button + 2 seconds. Answer/end calls: press the power button. Reject a call: Press and hold the power button to remind the last number dialed: double click the power button. Then briefly press the on/off button to cancel the call.