The Wurlitzer MLM (model 101) was produced as a learning tool for students. It is a keyboard inside of an ABS plastic case, which closes up completely when the keyboard is not in use.

The MLM has very basic electronics. Although the sound is similar to a combo organ, it lacks any features typically found in an organ, such as preset tones or effects such as tremolo. The only control is a sliding potentiometer for volume. It also contains an onboard speaker, and a 1/4” input, output, and headphone out.