Specification:Name: Amplifier BoardVoltage:12 VCurrent:80AMaximum power:1000 WImpedance: 4Size:215mmx170mmFeature:High efficiency, wide frequencyGive you a wonderful in-car entertainment.With current protection, overload protection, short circuit protection.Durable in useNote:1. Connected to the 12V power supply must be connected to the positive electrode of abattery, can not in the car just to find a positive line connected, or burned out car circuit2. GND interface must be connected with the cathode3. Connect the power cord of the three interface in the middle of the interface is the controlline rem, began testing machine take 12V test. And then find the top of the CD ACC controlline interface wiring, and be careful not to touch the ground in the car, the exposed placecarefully with electrical tape wrapped package is solid, otherwise it will cause a short circuitburned out the machine.Package Included:1 x Car Audio Amplifier Board