With the Casio PX-870, you're playing a digital piano that has the sound of a concert grand piano. Thanks to the 88 keys with weighted hammer mechanism, it feels as if you're playing an acoustic piano. Within the design, 3 sensors register the exact power of your key strokes. This allows you play with more feeling and makes the difference between hard and soft strokes more noticeable. Select 1 of 19 realistic piano sounds. This includes the sounds of concert grand pianos, electric pianos, strings, and organs. You can adjust the sounds to your liking. Would you like to simulate the acoustics of a well-known concert hall for extra realistic sound reproduction? If so, switch on reverberation from the Hall Simulator.