Add an extra dimension to story time with the VTech Yellow Peek A Boo Book. As you read along to nursery favourites like Hey, Diddle Diddle and Humpty Dumpty, baby can slide and push buttons to activate exciting light, sound and music effects. A great way to develop co-ordination and language skills, this book features non-rip and wipe clean plastic pages. Requires 2xAAA batteries, which are included.