Yamaha PSS-20

The Yamaha PSS-20 is a portable keyboard synthesizer released by Yamaha in 1983. It was used by many popular musicians, including Michael Jackson, Prince, and David Bowie. The PSS-20 is a monophonic synthesizer with a built-in speaker and a two-octave keyboard. It has a variety of features, including a built-in rhythm machine, a built-in arpeggiator, and a built-in sequencer. It also has a variety of sound effects, including vibrato, chorus, and flanger. The PSS-20 is powered by four AA batteries and can be connected to a computer or other MIDI devices.