Preschoolers can put on a rockin' performance with the Let's Rock Elmo Guitar. Packed with fun features, the Guitar includes three preschool tunes, three modes of play, light-up keys and a fun whammy bar. For even more rockin' fun, the Let's Rock Elmo Guitar also interacts with the Let's Rock Elmo character, which is sold separately, who magically knows when you have the Let's Rock Elmo Guitar and plays along with you to the Elmo's World song. The guitar comes with instructions. It includes 3 AA batteries.