Casio CT-S1 CasiotoneBring life and light to your world with the CT S1 a minimalist design allowing you to focus solely on the music. Savor the pure essence of the keyboards musicality while developing your unique style. Functionality and design that is all about you, with a simple interface, and a color palette to suit every aesthetic and complement any dcor. Create the perfect atmosphere with the CT S1s sleek look and uplifting sound.