Casio' PX560 is a lightweight, portable digital piano with 88 full-size, weighted scaled hammer action tri-sensor keys. The third sensor allows the instrument to more accurately emulate the sound of an acoustic piano, and this extraordinary key bed triggers with the feel of an acoustic piano. The Ebony & Ivory feel on the top of the keys enhance this effect. A sound sample library that features Casio' 4-Layer Stereo Grand Piano Sound, Multi-Dimensional Morphing Ai - R Sound Source, Hammer Response Simulator and String Resonance Simulator maximizes this triggering mechanism. - Other features include 256 Note Polyphony, 600 Tones with editor, Digital Effects including 17 Reverbs, 16 Chorus, 6 Delays, 4 Band Master EQ and DSP. A bank of 220 Rhythms with Rhythm Editor is included