SUPPORTS MULTIPLE DEVICES: RCA & 3.5mm audio input; supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc.MATERIAL: The 2 channel amplifier is made of aluminum alloy.Compact, lightweight ,offers low distortion & acoustically accurate audio reproduction.EASY TO INSTALL & USE: Two pairs of speaker output clips, easy to wire, Allows for full control of volume, treble and bass output; Great for use on your vehicle or your homeDUAL-CHANNEL OUTPUT: High-power audio amplifier chip, 15W x 2 RMS power output. 2.1CH, low distortionAPPLICATION: Suitable for no more than 6 inches & impedance of 4-8¦¸ 20W speakers, allows you to enjoy high-quality audio Description: If you have a radio, MP3 or other stereo system attached to your car or motorcycle, you can enjoy brilliant sound with this HiFi amplifier. It also has a jack for plugging your MP3, MP4, or CD player. Besides, this aluminum alloy power amplifier with low distortion with compact size is ideal for use on your carrier or at home. Specifications: Input impedance: 47Kohm Speaker impedance: 4 - 8 ohms 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 plug Material: Aluminum alloy Frequency: 20Hz-20KHz Distortion: 75dB Output power: RMS 15W x 2CH + 20W x 1 Input: DC12-14.4V ¡Ý3A Size: Approx. 15.4 x 12.9 x 3.9cm / 6.1 x 5.1 x 1.5inch Color: Black, Silver (Optional) Package weight: approx. 310g Package List: 1 x Power Amplifier 1 x User Manual