Support A2DP, AVRCP, Headset, handsfree profile
Bluetooth Version:        ISSC V3.0
Working Range:          Up to 10 meters
Working Times:          5 Hours
Dimension:             82*82*61mm
Net Weight:            300g
Speaker:              45MM   
Loudspeaker Output:     1*3W
Frequency Response:    60Hz-18Khz 
Signal-to-Noise:        >95dB
Distortion:          <0.5%
Battery Charging Voltage:    5V+/-0.5V   
Battery Voltage/Capacity:    3.7V 520mAh
Battery Charge Time:        2Hours