I absolutely love my iball. I've had a few trailer hook-up aids, but this is by far the best. I have been using it for about 1-1/2 years and trailer hookup, for me, is a lot easier than getting directions from a partner, as everyone thinks left and right differently, especially with hand signals. When the 9 volt battery starts getting a little low, there tends to be a bit of static, but a quick battery change remedies the static condition. If anyone at the Lone Pine Rally wants to try it, stop by my campsite (#23) and give it a shot.