This is the specs of the keyboard i hope it answers any and all questions about it. * 61 Full Size Keyboard with Jukebox & Ad-lib Musician * 61 Full -size keys * 16 -note polyphonic * 120 PCM preset tones: 40 solo, 40 duo (split), 40 ensemble (layer) * 40 auto rhythms * Casio/Fingered Chord auto-accompaniment system * Expert Logic Accompaniment creates smoother, more musical background * Auto-Play/Teaching Features: "Jukebox" contains 40 emo songs; "Ad-lib Musician" feature makes every note on the keyboard correct for the song you are playing * Chord memory stores a sequence of left hand auto chords * Headphones Output Jack * Built-in Stereo speakers * Operates on 6 D batteries or optional AD-5 Adapter