YUPITERU MVT-7100
It was sleeping in the closet.
What is pictured is everything.
Confirmed to be energized
*There seems to be no problem with the intended use, but the battery cover tab is broken? It seems that way, but I have never seen a working item, so I am not sure if it is actually broken or not. (If you try to force it up with your fingers, you can see a slight gap.)