Input Power: USB port 
RMS:2W*4 　
Driver Unit:1.5" 4ohm 3W
Frequecy Range:35HZ-18kHZ
S/N:≥60dB
Product Size: W70*D65*H223(mm)       
Color box dimensions:L237*W76*H135(mm) 
Carton dimensions:  L558*W492*H286(mm) 
Packing:28sets/ctn，N.W：19.8 KGS;G.W：21.5KGS
20'' containaer: 9940sets   40GP:   20664sets   40HQ:15680sets