VOX Books.

"Every VOX Book is a print book with a ready-to-play audiobook inside. Kids will press play to read along with their favorite books and then switch to learning mode for literacy learning and fun."--Publisher's website.

VOX Audio playback device includes headphone jack, external speaker, play/pause button, volume controls, page-turning controls, rechargeable battery, and removable AC adapter.

"The permanently attached VOX Reader transforms an ordinary print book into an all-in-one read-along. There's no need for computers, tablets or CDs. Children simply push a button to listen and read"--Publisher's Web site

Book originally published: New York : Greenwillow Books, [1996]

Vox book (read-along book).