Roland DP900 is a digital piano designed for both beginners and experienced players. It has been used by professional musicians, teachers, and students alike. The Roland DP900 features 88 weighted keys, a built-in metronome, and a variety of sounds and effects. It also has a USB port for connecting to a computer, allowing users to record and edit their music. Additionally, the Roland DP900 has a built-in recorder, allowing users to capture their performances. The Roland DP900 also has a variety of connectivity options, including MIDI, USB, and Bluetooth.