The award winning Smart Hitch Camera and Sensor System eliminates the frustration of hitching up a trailer by yourself. The patent pending hitch camera mode easily aligns ball to trailer every time by placing an extra set of eyes where you need them. The SmartZone sensors utilize ultra-sonic sensing to detect objects up to 5.5 feet away and provide an audible alert when an object is present. Great for everyday use as well as hitching a trailer.