This is a Geek Squad Certified Open Box Product. See below for more information. Slim size, 88-key model of the ARIUS digital piano featuring weighted keyboard. With Yamaha's CFX concert grand piano sound as a built-in Voice, experience a rich expressive playing feel with the GHS keyboard. Includes newly equipped ear-friendly functions, and compatibility with Yamaha’s Smart Pianist app. Lid becomes flat tabletop when closed.