Version:V4.2
Bluetooth chip:建荣(JR)
Transmission frequency:2.4GHz
Battery: 60mAh with Protect IC
Talk time: 3hrs
Standby time:120hrs
Charging time: 1hrs
Data interface: USB2.0
Input interface：USB stereo
Cable length：65cm
Function:Control Volume and Calling
Music Previou/Next/Pause/Start
Driver Unit：Φ13mm
Sensitivity:96dB±3dB
Impedance:16Ω±15%
Frequency Response:20-20KHz