Yamaha PSR-150

The Yamaha PSR-150 is a portable keyboard instrument designed for beginners and hobbyists. It has been used by many musicians, including John Lennon, who used it to compose some of his songs. The PSR-150 has 61 full-size keys, 100 preset voices, 100 preset rhythms, and a built-in metronome. It also has a built-in speaker, a headphone jack, and a MIDI port. The PSR-150 is powered by six AA batteries or an optional AC adapter. It is a great instrument for learning the basics of keyboard playing and for creating simple compositions.