The stylish, 88-key Casio PS20 features 8 high-quality onboard stereo sounds including a wonderful multi-sampled grand piano, onboard digital reverbs and choruses, and powerful built-in speakers, all packed into an innovative design. Its Naturally Scaled Hammer Action keyboard is designed for a heavier feel in the lower range and a lighter feel in the high range, for a touch that is just like that of an acoustic piano.