All wooden case for subwoofer and satellite     Control Panel: Volume +/-, bass, treble, balance  Speaker Unit：subwoofer: 5.25", 4Ω 
                      satellite: 2.75" x 2, 4Ω
Output Power：subwoofer: 20W
                       satellite: 10W x 2
T.H.D.: 0.1%(1W,1KHz)
Product Size：subwoofer: 172 x 283 x 252(mm)  
                      satellite: 110 x 183 x 128(mm)
Carton Size: 770x 395 x 450(mm)/3sets