[STURDY AND ] Remote battery disconnect switch made of high quality material and pure copper, better contact, long service life, more than 5000 times, can extend the life of the car battery by 2-3 times. [MORE CONVENIENT] The remote control battery disconnect switch without allows you to not open the hood every time to turn on the power, just press the button on the remote control to disconnect your car's power system, which saves you a lot of time and hassle, and the remote control improves safety. [EASY INSTALLATION] No modification needed! Step 1: Remove negative power line from the vehicle. Step 2: Attach negative power line to the relay. Step 3: Attach relay to the negative battery pole. Step 4: Connect red to the positive battery pole. The 12V battery disconnect switch allows you not to open the hood every time to turn on the power, just press the remote control button to disconnect your car's power system, which saves you a lot of time. [BETTER SECURITY] Anti-theft kill switch,