1.MP3，for iPod， CD player input jack2.200W max power output3.Low distortion4.Great for use on your vehicle or your home5.Smart， lightweight aluminium casing6.lightweight， has a matt silver casing and allows for full control of your volume， treble and bass output. It also has a jack for plugging your MP3， MP4，for iPod or CD playerSpecifications:1. for DC Iutput: 12V-18V 2A2.Jack input: 1/8" (standard stereo jack)3.Voltage: 12V4.Material: lightweight aluminum5.Dimensions: 14 x 10.5 x 4cm (5.5 x 4 x 1.5")6.Input impedance: 47K7.Speaker Impedance: 2-8Ω8.Total harmonic distortion: <0.4%9.SNR: > 80dB10.Frequency response: 20Hz-20KHz11.Color: SilverPackage included:1 x Hi-Fi Stereo Amplifier