PSS-370

Yamaha Portasound electronic musical keyboards were produced by the Yamaha Corporation during the 1980s and 1990s. The name suggests the instruments' portability, with battery operation being a consistent feature across the line. Many of these keyboards were designed for children with small keys and simple preset functions suitable for educational use. In 1982, the line introduced a card reader system which allowed players to learn and play along with sequenced songs. The PSS line features mini keys and the PSR line features full-size keys. Some of the higher-end keyboards have advanced features like programmable synthesizer controls, MIDI capability, and sampler functions.