I bought 2 of these thinking they would be enough but I am going to buy 3 more so I have 4 receivers. 1 for each bank of lights. Easy to set up and use. Taped them right to the light trees. Not a problem at our first gig. Worked like a charm from 60 feet away. I wish they were a little smaller but the size really wasn't an issue. Not running another cable is pretty sweet but I do have them for a backup just in case.