Built in Japan in about 1986, during the heart of the grand New Wave era, it's a Casio MT-36. It's a little 25-1/4" long keyboard. It is tested and works. I just put new Duracell batteries in it. The battery compartment lid is missing, so a piece of cardboard has been cut and taped on for a lid. It's polyphonic. It has a little speaker built in it and a 1/8" output jack too. It's a funky little keyboard, ready for a new owner.