Power Output: 80W Input Impedance: 10kohm Contrlol: volume/bass/mute/input Speaker Unit: — Woofer: 5" 8ohm — Satellite: 3" 4ohm Dimensions: — Subwoofer: 170mm(W)*310mm(H)*300mm(D) — Satellite: 100mm(W)*170mm(H)*110mm(D) Frequency Response: 45Hz~20KHz S/N: =70db Power Input: AC 220V~50Hz