Brand Casio Color Red/Black Number of Keys 88 Special Feature Portable Item Weight 23.15 Pounds About this item Stereo grand piano, plus nine other Tones with layering, adjustable effects and temperament Scaled, weighted hammer-action, simulated ebony and ivory textures plus Duet mode Slim design that weighs less than 25 pounds, available in black or red finish Designed to work with the free Casio Music Space app for iOS and Android Optional battery power (AC adapter included)