The bold single-color scheme and minimalist design aesthetic together deliver a simple yet elegant piano experience.The CDP-S series is compact, lightweight and ultimately portable. Because it can be run from either AC power or batteries. Ten essential tones, including grand pianos and electric pianos, are waiting to be discovered and played. The subtle changes in response to velocity and time on the piano tones have become even more natural, broadening your range of expression. The CDP-S series is perfect for a wide range of musical genres. The fine-grained finish on the key surface prevents slippage caused by perspiration, and the keys feel comfortable to the fingertips even during long sessions. The function notations above the keys make it easy to see which keys to press to change settings such as tones and tempo. In addition to standard equal temperament tuning, 16 alternate temperaments (scale tunings) are available.