BT Version:V4.2+EDR

Frequency Response:100Hz-20KHz

Battery voltage:1200MAH

Playing time:Up to 180Min

Charging time:UP to 120Min

Colours:Black,Red, Blue, Green

Signal-to-Noise:Up to 15 meters

Battery Voltage:84 db orhigher

Sensitivty:85db+2db

Output power:3W*2(52mm)

Working voltage:3.7V

Distortion rate of :116 of less