Full Size 61 Standard Keys (C2-C7), 129 Tone Reportoire, 100 Background Rhythms, 30 Demo Tunes and 16-note Polyphony * Built-in Record/Playback Function, Foot Pedal for Added Effects, Learning Mode, Right and Left Speakers * Built in Speaker with Digital Volume Control; Plug in Jack for headphones or External Speakers or Amplifiers * Roll it up and put it inside the included pouch for easy storage or travel with ease with this 2.5 lbs piano * Can be operated with 4 AAA Batteries (12 - 15 hours run time) or the included AC Adaptor