This is a hero replica of a Star Trek TNG Operations PADD; made of cast resin (two part: front/back attached with two screws), painted red, and has adhesive gray and aluminum vinyl detail applications.
The electronics include a back-lit display, blinking green "progress" lights and red power indication lights. It has a momentary push switch and is powered by a J-type 6v battery.
This was obtained second hand; original owner bought it at a convention in the late 1990s. If anyone knows the maker, I'd love to know. :)
Size: roughly 4"x6"x0.625"