88 Full size weighted, scaled hammer action ebony & ivory touch keys, AiR Sound Source, 4 Layer stereo grand piano sound, Touch Response, hammer response & damper resonance simulation, 192 Note Polyphony, choice of two grand piano sounds, 22 enhanced tones, Concert Play with 10 Classical Pieces, 60 Built-in & 10 user songs, 2 Track / 1 Song Recorder, Duet Mode, USB to host connection, 3 pedals, 2 x 8W Amplifier, sliding key cover, deluxe matching bench. Operates with included ADA12150P adapter.