Output: RMS  3W x 2
Frequency: 100HZ---18KHZ
Speaker Unit: Φ52mmx2/4Ω
S/N: ≥75db
Box Dimension: W130 x D115 x H90mm
Power: ~5V-USB  3.5 stereo insert          
Material: wood                         

Li-ion Battery:3.7V 1000mA                                               

Built-in: SD card,USB decoder,with remote control, FM, LED display