V4.2+EDR
Power Input
3.2V-4.2V
Output
30mW
Power
74mW
Earphone battery
50mAh per single,add protection board
Charging box battery
300mAh,add protection board
Charging power
earphone 5V/1mA, charging box 5V/1mA
Transmission distance
10m
Frequency
2.4GHz-2.48GHz
calling time
2hours
Music time
2hours

The charging box can charge 2-3 times earphones per full-charge

To fully charge the earphone is 1.5hour needed