The Kurzweil SP7 88-key stage piano features authentic feel and playing expression with its fully weighted hammer-action keybed and sustain. Its 256 polyphony and 512 voices lend tonal flexibility and power that serves piano players of all types. Complete with a 4.3" LCD screen for convenient readability and control—as well as balanced stereo outputs and headphone jack, this piano has everything you need to practice and perform with confidence.