Yamaha PSS-11

Yamaha PSS-11 is a portable synthesizer keyboard released by Yamaha in 1983. It was used by many popular musicians, including Michael Jackson, Herbie Hancock, and Prince. The PSS-11 is a monophonic synthesizer with a built-in speaker and a built-in rhythm machine. It has a two-octave keyboard, a single oscillator, and a single envelope generator. It also has a built-in chorus effect and a built-in arpeggiator. The PSS-11 is capable of producing a wide range of sounds, from bass and lead sounds to strings and pads.