Feature 1 This amplifier is reasonable designed through introducing advanced heavy bass circuit technology. 2 It's supplied by single direct-current main, with automatic polarity protection to circuitry overheating and overloading,with good channel seperation. 3 It has the characteristics of low noise, light weight, large power output and good sound quality. 4 Mini size easy to install, especially good fit for car, motorcycle bike, boat, etc. Made of aluminum alloy, the product appearance is very cool and fantastic. 5 Good sound quality, high and low saturation significantly.Description: This amplifier can be used in car audio, home theater, computer speakers, MP3 or other audio equipment. This high-fidelity high-power amplifier features small size, easy installation, low distortion, noise and whispered good isolation. You are worth it! Feature: This amplifier is reasonable designed through introducing advanced heavy bass circuit technology. It's supplied by single direct-current main, with automatic polarity protection to circuitry overheating and overloading,with good channel seperation. It has the characteristics of low noise, light weight, large power output and good sound quality. Mini size easy to install, especially good fit for car, motorcycle bike, boat, etc. Made of aluminum alloy, the product appearance is very cool and fantastic. Good sound quality, high and low saturation significantly. Specification: Voltage: DC 12V Rated power: left and right channel output 40w * 2; Subwoofer output: 60w * 1 Noise reduction ratio: 80db Distortion rate: 0.4% Rated frequency: 20-20KHz Material: Aluminum alloy Color: Silver (Shown as the picture) Package weight: 460g Package includes: 1 x Audio Amplifier