The Baby Einstein Pop-Up Sound Farm Friends introduces children to the colorful sights and happy sounds of a friendly farm. This interactive storybook features exciting pop-up scenes on every page and four classical melodies to engage your child s senses on the farm. Toddlers will delight in the interactive fun on every page. They will love to follow along with the simple rhyming story as they turn the pages to engage these colorful pop-up farm A happy frog leaps from a pond. A sheep jumps through a meadow. A horse trots up and down a field. A rooster awakes in the cow s barn. Toddlers will also enjoy pushing the illustrated sound buttons to animate the story with classical music. There are four lively Strauss Jr. s Voices of Spring Waltz Schubert s Symphony No. 5 Schumann s The Happy Farmer Strauss Jr. s Annen Polka The Baby Einstein Pop-Up Sound Farm Friends conforms to the Specifications for Toy Safety of ASTM F963-03. It has been safety tested for children 18 months and up. Three replaceable long-life AG-13 button cell batteries that power the book are included.