Yamaha YDP223 Digital Piano Keyboard Premium GHE (Graded Hammer Effect) Piano Action, 88 Keys, A1-C7 Tone Generator Stereo Sampling AWM Polyphony up to 64 notes Voice Selector - GrandPiano 1, Grand Piano 2, Electric Piano 1, Electric Piano 2, Harpsichord 1. Master Volume Control Jazz Organ, Strings1, Strings2, Choir, Guitar plus Dual Voice (combine two voices at once) Effect Reverb, Effect, Brilliance Voice Selector - Harpsichord 2, Vibraphone, Church Organ 1, Church Organ 2.