The Peek and Play Baby Book by VTech is a real page turner; 6 soft, interactive book pages introduce animals through bold pictures and fun interactive features Pages include fabric flaps that lift up for fun peek-a-boo surprises Connect the book to car carriers and more for on-the-go fun; connects to the VTech Pack-O-Links for even more fun (sold separately) Features 50+ playful songs, melodies, sounds and cheerful phrases; light-up music button flashes with the sounds and music Requires 1 AAA battery (battery included for demo purposes only; new battery recommended for regular use); intended for ages 3 months and up