Description:This is a mini 2 channel HiFi stereo audio power amplifier for cars, motorcycles, boats, MP3, and so on. The power amplifier with bass, treble andamp volume control in small size is easy to install and use. Order it and enjoy music.Features:All aluminium alloy shell, to eliminate all kinds of electromagnetic interference.Using high-power audio amplifier chip, the output power is 30Wx2RMS.RCA andamp 3.5mm audio input. Supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3 or MP4, etc.Two pairs of speaker output clips, easy to wire.Support high andamp low frequency adjustment.Tone or Direct switch allows customized listening via separate bass and treble adjustments or original audio source signal to be passed through without enhancement.Specifications:Input impedance: 47KohmSpeaker impedance: 4 - 8 ohmsCompatibility: Compatible with mobile phone, MP3, computerVolume control: SupportConnection: WiredInterface: 3.5mm audio jack, RCA input portAudio Source: Electronic devices with 3.5mm plugMaterial: AluminumFrequency: 20Hz-20KHzDistortion: andlt 0.4 percent S or N: andgt 80dBFrequency response: 20Hz - 20KHzOutput power: RMS 30W x 2CHInput: 12-13.5V DC 3ASize: Approx. 14 x 9 x 4.1cm or 5.5 x 3.5 x 1.6inchColor: BlackPackage weight: 289gPackage List:1 x Power Amplifier1 x User Manual.