The Casio Casiotone CT-S200 is designed with flexibility in mind. By day, this keyboard is a 61-key digital piano with piano-style keys. By night, you can take your digital piano into the home studio and use it as a MIDI controller. And if quiet practice sessions are a necessity, you can use the headphone jack to eliminate most of your playing noise. The Casio CT-S200 has 400 unique tones, 77 rhythms, 10 reverb settings, and the lesson function.  Casiotone CT-S200 includes an LCD display and AC power adapter.   Dance Music Mode adds 50 extra rhythms Included lesson function teaches you songs Optional battery operation ensures that you'll be able to play anywhere Built-in carry handle makes transportation easy Includes AC power adapter Tech Specs Number of Keys: 61 Type of Keys: Full Size Polyphony: 48 Notes Presets: 400 tones, 77 rhythms Effects Types: 10 x Reverb Audio Inputs: 1 x 1/8" (aux in) Audio Outputs: 1 x 1/8" (headphones/line out) USB: 1 x Micro B MIDI I/O: USB Pedal Inputs: 1 x 1/4" (sustain) Software: Chordana Play App Built-in Speakers: 2 x 5.1" Power Supply: AC adapter (included), 6 x AA batteries (not included) Height: 2.9" Width: 36.6" Depth: 10.1" Weight: 7.3 lbs.  Manufacturer Part Number: CT-S200RD