RockJam 54-Key Portable Electronic Keyboard with Interactive LCD Screen & Includes Piano Maestro Teaching App with 30 Songs 54 full size-keys gives the keyboard a traditional piano feel Compact and portable; can easily be taken on the road Record and playback functionality, 8 demo songs, multiple teaching modes, 100 keyboard sound effects, and 100 rhythms Interactive LCD screen shows beginners the correct keys and chords to play 30 free songs on Piano Maestro iPad app; ranked #1 educational tool for beginner piano students in 20 countries