"Version: V4.2
Metal housing without Magnetic
transmission frequency:2.4GHz
Battery: 80Mah with Protect IC
Talk time: 4hrs
Standby tiime:150hrs
Charging time: 2hrs
Data interface: USB2.0
Speaker ：φ10mm /6u
Sensitive:95±3db
Input interface：USB stereo
Cable length：55cm
Function:
Control Volume and Calling
Music Previou/Next/Pause/Start"
