Yamaha PSS-31

The Yamaha PSS-31 is a portable keyboard synthesizer released in the early 1980s. It was used by many popular musicians, including Michael Jackson, Prince, and David Bowie. The PSS-31 is a monophonic synthesizer with a built-in speaker and a single oscillator. It has a range of features, including a built-in arpeggiator, a pitch bend wheel, and a built-in chorus effect. It also has a built-in sequencer, allowing users to record and playback their own compositions.