The SDP-3 stage piano is a perfect instrument for home and performance use for all pianists. The piano features 88 hammer action keys with three levels of touch sensitivity that make the piano feel authentic to an acoustic piano. This is combined with 16 high quality tones including piano, organ and strings, which can be played through the internal speakers or the line output to connect to an amp or PA, or to a computer via the USB Audio output. The piano includes a host of effects including reverb and chorus, as well as a sustain pedal and music rest.