Wirelles version : 4.1

Talking time : up to 7 hours

Music time : up to 6 hours

Standby time : over 180 hours

Charging time : 1-2 hours

Charging type : micro usb

Charging power : DC5V 110mah

Transmission distance : 32ft (10m)

Output power : 3mW x 2

Sensitivity : 102dB at 1khz

Impedance : 16 ohm

Frequency Range : 20hz - 20khz

THD : <1%

Supported profiles : HSP, HFP, A2DP, AVRCP..

Mic Sensitivity : -42dB

Mic impedance : 2200 ohm