TWEETER UNIT:Horn Loaded Ribbon Tweeter MID-WOOFER:5 inch Aluminum Cone Underhung Design Neo. Power Mid-Woofer AMPLIFIER SYSTEM:Digtal Amplifer With Xmos Processor TOTAL POWER OUTPUT:L/R(Treble)10W+10W, L/R(Woofer): 40W+40W FREQUENCY RANGE:52Hz-40KHz SIGNAL-TO-NOISE RATIO:L/R:?90dB(A) INPUT TYPE:AUX, PC, USB, Optical, Bluetooth. INPUT SENSITIVITY:AUX:450±50mV PC:550±50mV, USB:400±50mFFs, Optical:400±50mFFs, Bluetooth:500±50mFFs, Sub Out: 800mV(max) MAINS VOLTAGE:100-240 V AC/50-60 Hz DIMENSION:160x283x255mm NET WEIGHT:11 Kg(24.2lbs) WEIGHT:13.4 Kg(29.5lbs) PACKING DIMENSION:387x489x353mm