APPLICATIONS: The battery disconnect switch works well for Car, Truck, RV, Travel Trailer, , SUV, ATV, UTV, Van, Boat Specification: 12V DC 500A Advantage: Just press the remote control key button to disconnect your car Color: Black Material: ABS Installation steps Step 1: Connect the red wire to the positive terminal of the battery : Attach the battery clip to the negative terminal of the battery Package Contents: 1x Relay 2x Remote control Key 2x Terminal lugs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.