Standard 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. | Yamaha YDP145 ARIUS Standard 88-Key Weighted Hammer Action Digital Piano w/ Stand, Bench & 3 Pedals - Black