NEW 2.1 USB Subwoofer 
RMS：5W+3W*2
Drive Unit： 4inch+ 2inch*2
Frequency：270Hz-20KHz
Separation：>65dB
Input sensibility：650mv  
Power input：USB 5V 
Product size：230*130*125MM     72(W)*82(D)*120(H)mm    


Features: BASS adjustment!
* Volume on/off button
* Touch button to adjust the light
* Changing Rainbow light, 4 lights modes