Bluetooth Model:V3.0+EDR
Power: 3W max
Signal To Noise Ratio:>80dBFrequency Response:150Hz-20kHz Distortion:<10%
Battery Li-ion:3.7v, 400mAh
Battery Charging Voltage: 5V
Charger Time:3 hours max
Driver Unit:40mm, 4 Ohm ,3W
Transmission Distance: 10m
Product Size L:10.5x10.5x5.5cm
Material: ABS+Iron
Packing: Color box ; 60pcs/46x35x32cm/0.052cbm; GW/NW:14/13kg;