CASIO CTK-2100

61 piano-style keys 48-note polyphony (maximum) 400 high-quality tones including stereo grandpiano tones 150 rhythms including 55 ethnic rhythms and 20 patterns for piano play Auto-accompaniment 110 Song Bank tunes, including 20 Exercise phrases One Touch Preset (150 presets) Digital Effects: 10 reverbs Song Bank / Rhythm Controller Metronome Musical Information System (LCD) General MIDI (GM Level 1) support allows connection with a computer or another GM-compatible device. USB port for computer connection Speakers 10cm x 2 Amplifier：1.6W + 1.6W Comes with song book, music stand Size (W x D x H): 949 x 354 x 112 mm Weight: 3.8 kg Batteries: AA-size x 6 (not included) AC adaptor: AD-5 (not included) Check Price The Manufacturer reserves the right to make design and specification changes for product improvement without prior notice source: http://www.casio-intl.com/emi/standard/ctk2100.html