Well, after I finally got the correct product [...] I discovered how incredibly unreliable this unit is. I believe there are some shorts in the main transmitter since I have swapped out batteries, cables, etc and it just doesn't work consistently. In speaking with others, they recommend staying away from cheap units like this and just saving up a bit and getting something with true diversity. It is a more reliable system and the actual unit is probably better quality. This is not a slam on NADY, but on this level of product. I had hoped that I could buy something cheap that would work for a particular event I was working on, and unfortunately this didn't work at all. Sadly, I have been too busy to send it back to Nady so far, but plan on doing that this week.