Yamaha PSS-170

The Yamaha PSS-170 is a portable keyboard synthesizer released by Yamaha in the early 1980s. It was used by many professional musicians, including the likes of Michael Jackson, Prince, and Herbie Hancock. The PSS-170 is a monophonic synthesizer with a built-in speaker, and it features a two-octave keyboard, a built-in rhythm machine, and a built-in sequencer. It also has a built-in arpeggiator and a built-in chorus effect. The PSS-170 is powered by six AA batteries and can be connected to an external amplifier or mixer.