Interactive picture book that lets you enjoy animal sounds. - Title: Polar Bear, Polar Bear, What Do You Hear? - Author: Bill Martin Jr / Eric Carle - Sound Button: With sound button - Content: Picture book to listen to animal sounds Thank you for viewing. 26 cm x 23 cm The sound doesn't work, possibly due to dead batteries. We apologize, but it will be delivered as is. Thank you for your understanding.