The Williams Allegro 2 is a full-size digital piano with 88 hammer-action weighted keys, and a brilliant new custom sound library. Enjoy 10 great sound samples, including classical and modern pianos as well as favorite electronic keyboards and synths. The Allegro 2 is a highly versatile, portable digital piano offering outstanding reverb and chorus effects PLUS special Modulation/FX control for realistic rotary and vibrato effects