The Yamaha PSR-I455 is a digital keyboard and synthesizer designed for home and studio use. It is a 61-key instrument with a wide range of sounds and features. It has been used by many professional musicians, including John Legend, Alicia Keys, and Bruno Mars.
The PSR-I455 has a variety of features, including a built-in sequencer, a variety of effects, and a wide range of sounds. It also has a USB port for connecting to a computer, allowing users to record and edit their music. Additionally, the keyboard has a built-in arpeggiator, which allows users to create complex rhythms and patterns. Finally, the keyboard has a variety of connectivity options, including MIDI and USB, allowing users to connect to other instruments and devices.