Description: If you have connected a navigation system, MP3 or other stereo audio signal source in your car or motorcycle, you can use this HiFi amplifier to enjoy wonderful sound. It also has jacks for plugging in MP3, MP4 or CD players. In addition, this aluminum alloy power amplifier has the characteristics of low distortion and compact size, which is very suitable for use in your operator or at home. The product has a 2.1 channel output. It is also suitable for 2.1 channel subwoofer passive multimedia computer speakers and bookshelf speakers. Features: Full aluminum alloy casing to eliminate all types of electromagnetic interference. High-power audio amplifier chip, output power 15W x 2 RMS. 2.1CH, low distortion. RCA and 3.5mm audio input. Supports all types of audio input, such as mobile phones, DVD players, computers, MP3 / MP4, etc. Ideal for use in your vehicle or at home. Smart and lightweight aluminum casing. Two pairs of speaker output clips, easy to wire. Allows full control of volume, treble, and bass. Specifications: Input Impedance: 47Kohm Speaker Impedance: 4 - 8 Ohm Compatibility: Compatible with mobile phone, MP3, computer Volume Control: Support Connection: Wired Interface: 3.5mm audio jack, RCA input port Audio Source: Electronic devices with 3.5mm jack Material: Aluminum alloy Frequency: 20Hz-20KHz Distortion: <0.4% S/N: >75dB Output Power: RMS 15W x 2CH + 20W x 1 Input: DC12-14.4V ≥3A Size: Approx. 15.4 x 12.9 x 3.9cm Color: Black, Silver (optional) Package Weight: About 310g Package List: 1 x Power Amplifier 1 x User Manual