Color:White/Black/pink/orange/blue/green

Power supplier:DC5V 
Output power:2W
Frequency:150Hz——18KHz
Signal&noise ratio:≥65dB
Impedance:4 OHM(Ω)
Output:3.7V~4.2V+0.05V 
Input:5V
Lithium battery:150mAh-400mAh
Speaker Unit:32mm
Case Material:ABS
Dimensions:Dia50mm*H69mm
Weight:48g
Color:White/Black/pink/orange/blue/green