KTNNKG Car Battery Switch Wireless Remote Control Disconnect Latching Relay Electromagnetic SolenoidWhy we need this device?Sometimes we have to stop the engine for long times(15 days or more), Car battery run off day by day. What if it is out of battery one day?You can't start the car. This device can cut the power off, You just need to turn on the battery with your remote when you want to use the car one day.Notice :1. This device is only for battery on / off, it can't start your engine2. Pls do not cut the power off when your engine is working3. The remote has been paired well with the switch before shipping, you can use it directly when you get it. No need to pair them again4. Please check the car hood space and the car battery voltage before purchase12V for the car, 24V for truckParameters:Max Current: 1000ARated Current: 100ARated Voltage: DC 12V/24VWorking Voltage: DC 5-15VLifetime of Use: 100,000 TimesRemote Receiver Standby Current: 0.0085AMain Switch Size: Height:3.2", Width:3.8", Length:5.8"This switch support manual control. If your remote lost or out of power, you can press the button, then the battery connect.Package included:1 x Electromagnetic Car Battery Switch with wiring cable1 x Remote Control1 x Remote Receiver Relay with wiring cable