Seems to be rare?? as we could not find much info or completed ones like it.

Handheld mic  with cable (no plug but you can put on a 1/4", XLT etc. or hardwire it)

We did temporarily connect wires to a plug and into a mixer and talked into it and it worked fine.

Has signs of handling and a scratch or crack in the plastic. 
5" long by 1" diameter at head
9v battery is only for size comparison (it does NOT use any batteries)

5oz