The Mighty Tiny was marketed between 1967 and 1970 by Ohio Art, best known for the Etch A Sketch, which was my first encounter with a digital plotter. (Hey—you operated it with your fingers—how digital can you get?) The AA battery served only to spin the record—sound reproduction was entirely acoustic, with a stylus in the top cover attached to a membrane diaphragm.
Amazingly, a wide selection of records (said to be 51 in total), each with between 15 and 25 seconds of sound (whether it merited the noun “music” was in the ear of the listener/victim), were available.