It has all arrived and I have put it all together! This is going to be an awesome system. Only problem I need to work out right now is some background noise that I am getting. Word of mouth is that Azden (the wireless mic maker) has developed a patch cord (from MP3 player to Transmitter) that eliminates all the noise. I just bought a cheap 6ft cord from Radio Shack. They didn't have any of the 1ft cords like I wanted. The cord acts as the antenna for the transmitter so I think with a 6 footer I am picking up way to much RF. Even with a ferrite bead on the cord I get some noise.
Other than that, Wow! Super light weight and compact. I loaded up 4 15 minute sounds on the MP3 player and played around with it a little. Volume control, pause, loop single track, switch sounds....it's all good! Plenty of volume too.
I'm anxious to get it out in the wilds and try it out. I'll give a report when I do.