Feature: 1. DC Power In: Give you a wonderful in car entertainment.DC power in, suitable for your car. 2. Powerful Power: Can connect to 4 speakers, meets the need of most users.5800w powerful power, providing you with superior thrust. 3. Portable: Aluminum alloy casting drawing process, slim design, simple and generous,in line with modern aesthetics. 4. Pure Bass: Mini HiFi car amplifier board, 12V strong pure bass, stereo surround sound. 5. Low Distortion: Low distortion supplies a clearer, strong and more powerful sound, thermal overload and speaker short circuit protection. How to Use: Car amplifier Specification: Item Type: Car Amplifier Product Material: Aluminum Alloy, Wire Drawing Process Working Voltage: DC12V Frequency: 20Hz-20kHz Sensitivity: 90db Rated Power: 4 x 100W Peak Power: 5800W Product Size: Approx.35 x 21 x 5cm / 13.8 x 8.3 x 2in Package List: 1 x Car Modified Power Amplifier 1 x Fuse 4 x Fixing Screw 1 x User Manual