The Master Lock Hitch Alignment System features a large 3.5" coloronitor for easy viewing while hitching your trailer. This Hitch Alignment Camera is easy to install and requires no wiring, the camera plugs into your existing vehicle trailer wiring outlet. The camera can be mounted in two ways; by using the magnetic base on the camera allowing it to be mounted to any metal surface or slide it into your 1-1/4" or 2" hitch tube and use the 4-way flat trailer wiring plug when you're not towing. The camera bracket can swivel 90º for increased visibility behind your vehicle. Color monitor can be mounted inside your vehicle into the air vent or on the dash board or windshield - then use the 12V charger to power up. Features a transmission range of up to 50-feet at 2.4 GHz. 1 year Master Lock warranty