I got my call from DSE (dstilwell@i-plus.net). There is link in the trapping forum. I got the info from the trapping section of this forum. It looks like just what I expected. Not as loud as I expected but I think it is going to work really well when combined with a mouth call. It is about the size and weight of a 2D cell flashlight and runs on 4 AA batteries.
I should have a performance report by Monday.