The Casio CDP-S160 is a compact, lightweight and portable digital piano with a Scaled Hammer Action. You can play wherever you like as it is can be run from either AC power or batteries. The unit features 10 essential tones, including grand pianos and electric pianos that are waiting to be discovered and played. The subtle changes in response to the velocity and time on the piano tones have become even more natural, broadening your range of expression.