once you get it all set up
its recommended to adjust the camera down so you can just see your hitch or other protrudence from your rig to use a a reference when backing up.
i tried it, and then went back to where i could see the tongue and both lanes next to me at the rear. i figure if the object is that close i should be stopping.
like most i have a great wife that directs me backing up
great feature is i can hear her, or choose not to to
when they switched out mine from b/w to hd color it was like night and day
its almost to real