Driver Unit：Φ10mm
Frequency：20-20KHz
Impedance：24 Ω ± 15%
Sensitivity：95±3dB(at 1KHZ)
Frequency Response：20-20k Hz
Max.Input Power：5mW
Polar Pattern：Omni-directional

Input plug:Plated 3.5mm 3P Cords
Cable： TPE flat cable
Length：1.2 ±0.03M

Version:Build V4.2
transmission frequency:2.4GHz
Battery: 60Mah with Protect IC
Talk time: 3hrs
Standby tiime:110hrs
Charging time: 2hrs
Working Current:22mA
Standby Current:1mA
Data interface: USB2.0
Input interface：USB stereo
Cable length：65cm
Function:
Control Volume and Calling
Music Previou/Next/Pause/Start