PortaSound PS-1

With a 32-key mini-keyboard, the PS-1 was developed as a compact keyboard for household use.
Small, lightweight, and able to run on batteries, this keyboard won praise for its simplicity and can even be connected to a car battery.
Players can choose between four internal rhythm patterns (waltz, swing, rock and Latin) and four voices (organ, strings, clarinet and piano). Players can also push the Sustain button to lengthen reverberations like a vibraphone.