Home Theatre System offers more style, more excellent acoustics design, a sense of full bass unit, high resolution treble unit, sound impressive, and integrated a variety of playback. It comes with a Built in digital mixer and the stereo signal input can be switched. Has a Slim remote control that offers easy remote control and is easy to operate. With its Full voltage power supply, enjoy the sound quality with constant output. Bluetooth Remote Control Speaker-K3M On/Off Power Switch Pen drive and SD Card Slot Three Surround Speakers Drive Units: 6.5"*1+3"*3;6.5"=35W;3"=5W With FM Dimensions: 442(L)x373(W)x387(H)MM Impedance: 8 ohms Total Output Power: 45W Frequency Response: 38HZ-20KHZ Distortion: 0.3% at 1W S/N: >75db Separation: >60dB On/off Power Switch X-