61-Key piano styled keyboard. Touch response. Digital effects let you add revert. Built-up play features 6 dramatic sound effects. Chordana play helps teach two-handed piano pieces. Chordana play uses a virtual keyboard from the app. Powerful lesson functions. 400 High quality tones. 100 Rhythms and Auto accompaniments. Pitch bend wheel. 60 Built-in songs. One touch preset. Headphone output. Audio input. USB port. Uses 6 AA batteries or AC adapter. Includes Music stand and AC Adapter. Dimensions: 37″2W x 12.1″D x 3.6″H.