Yamaha PSR-140

The Yamaha PSR-140 is a portable keyboard synthesizer released in the early 1990s. It was popular among amateur and professional musicians alike, and was used by artists such as the Red Hot Chili Peppers, Radiohead, and the Beastie Boys.

The PSR-140 is a 61-key keyboard with a built-in sound module. It has a variety of sounds, including piano, organ, strings, and drums. It also has a built-in sequencer, allowing users to record and playback their own compositions. Additionally, the PSR-140 has a variety of effects, including reverb, chorus, and delay. It also has a built-in metronome and a transpose function.