Physical Specification Gross Weight - 5.92 kg Net Weight - 4.7 kg Box Size - 32.9 x 32.9 x 30.5 cm -- -- -- -- Specifications Power Output 20W + 10W x 5, Impedance 4?, Frequency Response Main Unit : 40Hz ~ 200Hz, Satellite : 200Hz ~ 20KHz, S/N Ratio = 55dB, Separation = 35dB, Sensitivity = 500mVrms @ 1KHz, FM Frequency Receiver 88MHz to 108MHz, Power Supply AC 220V ~ 240V/50Hz, Speaker Unit / Size Main Unit : 10.16cm (4), Satellite : 7.62cm (3), Controls Provided Analog Controls : Volume, Bass knob, Digital controld : Source, Play/Pause/Scan, Previous/Tune-, Next/Tune+ , Bluetooth Range V3.0/7 up to 10mtrs depending on the devices.