The Casio WK-200 is a digital keyboard workstation featuring 76 touch-sensitive, piano-style keys and a host of features. This surprisingly inexpensive Casio keyboard comes with 570 high-quality tones, recording capabilities, and song expansion. You'll also get 48-note polyphony, line inputs for connecting an MP3 player, mic input, 10 seconds of sampling, built-in USB MIDI interface, and more. The quality, flexibility, usability, and affordability all help to make the WK-200 an ideal choice for beginning to advancing keyboard players alike who are interested in playing the piano and creating their own music
The Casio CTK-800 is powered by 6 "D" size batteries (not included) or optional AD5 AC power supply (not included).

Casio WK200 76-Key Digital Keyboard Workstation Specifications:
· Dimensions: 46.7"W x 6.1"H x 15.7"D
· Weight: 15.8lb.
· 76 piano-style keys
· Touch Response (2 sensitivity levels, off)
· 48-note polyphony (maximum)
· 570 high-quality tones including stereo grand piano tones
· 180 rhythms including 74 ethnic rhythms and 20 patterns for piano play
· Rhythm Editor: 10 user rhythms
· Auto-accompaniment
· 152 Song Bank tunes, including 50 Exercise phrases
· 305 music presets
· Registration (8 banks x 4 sets for 32 setups)
· One Touch Preset (180 presets)
· 10 seconds of sampling
· Digital Effects: 10 reverbs, 5 choruses
· Preset Scale (16 scales)
· Rhythm / Song Bank Controller
· Song Expansion: 10 songs maximum, approximately 320 KB total
· Recorder: 6 tracks x 5 songs, 1 lesson song, approximately 12,000 notes total
· Metronome
· Auto Harmonize (12 types)
· Arpeggiator (90 types)
· Musical Information System (Backlit LCD)
· GM level 1 compatible
· Stereo speakers