Power supplier:DC5V 
Output power:3W
Impedance: 4 OHM(Ω)
Frequency: 100Hz-18KHz
S/N: ≥95dB
Speaker Unit:40mm
Dimensions 15.4*7*4.5cm
Battery Capacity: 1200MAH 
Case Material : ABS + Silicon
Weight:228g
Color: OEM