The Casio CT-X5000 Portable Keyboard is an outstanding keyboard for nearly any skill level. It features pioneering AiX Sound Source technology, has an expandable library of 800 instrument tones, 260 accompaniment styles, and a dual 15-watt speaker system, giving you nearly endless avenues of tonal and stylistic exploration. The 61 touch-sensitive keys respond beautifully, letting you chord effortlessly as well as work on melodic runs.