This is a More Convenient Car Battery Disconnect Switch System that can remotely master kill your car power system,A Proper maintenance will extend and protect the battery and engine lifeRemote operation,Comparing to tranditional battery switch, this Remote Control Wireless Battery Switch Disconnect allows you to move the trigger from under the hood to your hand so that you no need to frequently pick up the hoodCome with One 300 Feet New Style Remote Control.You can even control it in your house,One button control on your dash for the whole car power system, Remote Receiver Standby Current is very low (0.003A)Universal for DC 12V Camper Trailer SUV Van Small Truck Agricultural Vehicle Trike Auto Off Road.(Battery Negative Column within 15-17mm)Integrated design, small size, avoid cumbersome wiring, convenient installation