Okay, here's a pic of mine so you can get an idea of size. You can control motors with it as I said, and you can also set each funtion to be on/off or momentary with the bank of micro-rocker switches in the upper left hand corner.
I think he's gone out of business tho, his site is not up, but seems a few online sellers may have them, although may be for Xtal radios only. My Spektrum system I got direct from him and it wasn't listed on his site. He told me he had Spektrum models when I contacted him to ask if they worked with Spektrum radios. Convenient huh?