7 colors pulsating LED Aux In - FM Radio USB Input Wooden Subwoofer & Satellite Output Power 40 Watt SUBWOOFER: Driver size: 4” Frequency response: 40Hz – 200Hz Output power (RMS): 14W Impedance: 4Ω SATELLITE: Driver size: 2 x 3” Frequency response: 180Hz – 20KHz Output power (RMS): 3W x 2 Impedance: 4Ω