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 & 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 & 3.5mm audio input. Supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc.Two pairs of speaker output clips, easy to wire.Support high & low frequency adjustment.Tone / 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: < 0.4%S / N: >80dBFrequency response: 20Hz ~ 20KHzOutput power: RMS 30W x 2CHInput: 12-13.5V DC 3ASize: Approx. 14 x 9 x 4.1cm / 5.5 x 3.5 x 1.6inchColor: BlackPackage weight: 289gPackage List:1 x Power Amplifier1 x User Manual.