"SESAME STREET Elmo's Rockin' Road Trip Sound Book Take your tunes on the go with the digital music player! Children can sing along with favorite characters using their own detachable digital MP3 Player! Each book spread features the lyrics of four songs, each with its own icon. The child can select the corresponding icon on their MP3 player to hear the song. The MP3 player includes Play, Shuffle, and Stop buttons. On the LCD screen, a simple animated icon - one for each of the 20 songs - will also be displayed. 10 Pages Casebound Board Book Demo batteries included Music player requires 3 X AAA batteries (demo batteries included) Measures approx. 11"" x 11"" Ages 3 +