1.2.4G wireless subwoofer , 2.YAMAHA audio sound techolongy 3.output power:240W 4.Analog 5.1 5.3D surround Specification2.4G wireless ... subwoofer ,DSP:YAMAHA,output power:240W,Support optical ... PCM input and analog inputSimulation 5.1 channel,3D suround.connect ...