Specification: Description:_x000D_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._x000D__x000D_Features:_x000D__x000D_All aluminium alloy shell, to eliminate all kinds of electromagnetic interference. _x000D_Using high-power audio amplifier chip, the output power is 30Wx2RMS. _x000D_RCA & 3.5mm audio input. Supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc. _x000D_Two pairs of speaker output clips, easy to wire. _x000D_Support high & low frequency adjustment. _x000D_Tone / Direct switch allows customized listening via separate bass and treble adjustments or original audio source signal to be passed through without enhancement. _x000D__x000D_Specifications:_x000D_Input impedance: 47Kohm_x000D_Speaker impedance: 4 - 8 ohms_x000D_Compatibility: Compatible with mobile phone, MP3, computer_x000D_Volume control: Support_x000D_Connection: Wired_x000D_Interface: 3.5mm audio jack, RCA input port_x000D_Audio Source: Electronic devices with 3.5mm plug_x000D_Material: Aluminum_x000D_Frequency: 20Hz-20KHz_x000D_Distortion: < 0.4%_x000D_S / N: >80dB_x000D_Frequency response: 20Hz ~ 20KHz_x000D_Output power: RMS 30W x 2CH_x000D_Input: 12-13.5V DC 3A_x000D_Size: Approx. 14 x 9 x 4.1cm / 5.5 x 3.5 x 1.6inch_x000D_Color: Black_x000D_Package weight: 289g_x000D__x000D_Package List:_x000D_1 x Power Amplifier_x000D_1 x User Manual Features: 1All aluminium alloy shell, to eliminate all kinds of electromagnetic interference. 2Using high?power audio amplifier chip, the output power is 30Wx2RMS. 3RCA & 3.5mm audio input. Supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc. 4Two pairs of speaker output clips, easy to wire. Support high & low frequency adjustment. 5Tone / Direct switch allows customized listening via separate bass and treble adjustments or original audio source signal to be passed through without enhancement. PackageList: