Car Amplifier 2 Channel IC amplifier Car Amplifier2 Channel IC amplifier RMS power ( 4 ohms ) 2 X 18W MAX power ( 4 ohm ) 2 x 150WSize: 100 (L ) x 80 ( W ) x 40 ( H ) mmSpecificationVariable Crossover NetworkGain Level ControlRCA OutputFrequency: 20 Hz- 20KHz Color available:Red,Green,Blue,White,Black,Purple. And we have a similar one with USB connector.AMZ2100-U: