INTERACTIVE MUSICAL SONG BOOK FOR BABY, TODDLER, 1-3 YEARS OLD: Read, listen and sing along as Ditty Bird sings your favorite Songs. EDUCATIONAL TOY LANGUAGE DEVELOPMENT: Reciting and singing nursery rhymes is a great way to support children's language learning. The engaging electronic push buttons help build early language ability and fine motor skills. DURABLE AND SAFE: Our sound books are designed to outlast even the roughest toddlers and exceed all US testing standards. PERFECT GIFT: These musical and sound books make great gifts for 1 year old boys or girls. Perfect baby gifts from 6 months to toddlers 1-3. YOUR SATISFACTION IS TOP PRIORITY: Oppenheim Toy Portfolio Gold Seal Award "These will be fun to share and sing along with". If you experience any issue, contact us and we'll make it right. Each book requires 3x type AG10 standard batteries. Batteries are included in the book.