(This is an excellent example considering it's age. It is versatile and was a well regarded model in the late 80s Casio lineup. The Casio Casiotone MT-500 is a classic late '80s Casio model. It features 12 rhythms (aka "super drums"), 20 tones, and 4 great rubber pads with interchangeable drum and percussion sounds, all in stereo :-).