With 88 full-sized keys that are hammer-action, this is the perfect digital piano for home or performance. The realistic piano feel can access 600 built-in voices. The SP4200 allows you to fine tune your sound with integrated reverb, chorus, and other effects. Get creative using the 120 preset songs and 230 included play-along rhythms. Real Piano Feel - Enjoy a real piano feel thanks to the hammer-action and full 88 keys. Packed with Sound Features: · Select from 600 different voices · 230 different drum rhythm styles · 120 built-in songs · 128 note polyphony · Keyboard split functionality Optimize Your Sound - Use 5 EQ settings, 10 reverb effects, and 8 chorus effects to customize your tone. Add Harmony - There are 6 harmony effects built in. The effects include octave, tremolo, and echo. Use them to add melody to your right hand performance. · Includes MIDI In and Out ports · Get creative with the pitch bend wheel · Includes integrated music holder