Sleepover Surprise Book and CD Prize

I received a Sleepover Surprise book with CD. At first I don't what the CD is for but when I played it on it gives instructions that when I hear the train sound it means it's time to turn the pages of the book, it's like play the CD first and listen while your looking the pages of the book, it's the version of e-book but it's CD-book (my new own term). My daughter loves the music and she dances while the CD is playing.

Thanks to Almost Crazy Coupon Lady and Shushybye.