Dual battery disconnect switch for car with remote control1、Convenient Operation: Easily kill the car power system with the included remote controller, without having to open the hood. 2、Prevent Battery Drain: Battery leakage can shorten battery life and reduce battery capacity. Protect your battery with our kill switches to easily solve battery depletion problems. 3、Default Off: The remote battery disconnect switch is designed with a default off setting, if the battery were dead ,the device default to closed condition. 4、Low Power Standby: With a standby current of only 5ma, less than 20ma for a new car, this switch is energy efficient and won't drain your battery. 5、Use Note: Turn on the battery before starting the engine (160 ft remote distance); Do not turn off the battery when your engine is working; This remote battery switch is only for battery on or off, it can't start your engine.