Kurzweil KA90 Arranger Stage Piano with 88-Note Hammer Action Keyboard 88-note, fully weighted hammer action keyboard with adjustable touch sensitivity 20 inspiring factory presets featuring Kurzweil's Triple Strike piano, organs, guitars, strings and more 50 auto-accompaniment styles create real-time arrangements Modern stage piano-style cabinet with integrated 4-speaker sound system Simple, intuitive control panel provides quick access to all system functions