Yamaha PSR-310M

The Yamaha PSR-310M is a portable keyboard synthesizer released in the early 2000s. It is a 61-key instrument with a wide range of sounds and features. It has been used by many professional and amateur musicians, including the likes of Coldplay, The Killers, and The Black Eyed Peas.

The PSR-310M has a built-in sequencer, allowing users to record and playback their own compositions. It also has a variety of preset sounds, including piano, organ, strings, and drums. Additionally, it has a built-in arpeggiator and a range of effects, such as reverb, chorus, and delay. The keyboard also has a built-in metronome and a transpose function, allowing users to easily change the key of a song.