Power-satellite:RMS35WX2 Subwoofer:RMS80W Frequency Response:50Hz-20KHz Power supply:110V-220v/50Hz-60Hz S/N Ratio:81db Impedance :4ohm Drive Unite:6.5"X2+3"X2+Tweeter Dimension-satellite:150(W)X1506(D)X250(H)MM Dimension-subwoofer:420(W)X310(D)X320(H)MM Dimension-color box:540(W)X460(D)X325(H)MM Dimension-carton box:550(W)X475(D)X670(H)MM 2Set/CTN