Power Output15W + 10W x 4Speaker Unit / SizeMain Unit : 10.16cm (4'') / 15W, Satellite : 7.62cm (3'') / 10Wx4ImpedanceMain Unit : 8 ?, Satellite : 4 ?Frequency ResponseMain Unit : 20Hz - 200Hz, Satellite : 200Hz - 20KHzS/N Ratio? 55dB Separation? 35dB Bass Up/down? 15dBSensitivity500mV rms @1KHzFM Frequency Receiver88MHz to 108MHzPower SupplyAC 140V- 280V / 50Hz Controls ProvidedRotary Type (Volume & Bass), PP/Scan, Mode, Next / TU+, Prev / TU-Input & Output JackRCA JackNet weight3.5KgFEATURES 4.1 Channel multimedia speaker compatible with USB/SD/FMAUX audio input compatible with DVD/PC/LCD TVYesFully function remote controlYesRotary type Volume & Bass controlYesPower Indicator LEDYesLED DisplayWide range SMPS based power supply (AC 140V~280V)Yes