1. Good quality touch sensor sound module in silver oil (rather than carbon) is hidden into the board book to make the book work satble.
2. The pushing button sound module is under the animal fur, not exposed in the pages, more perfect and nice for design.
3. Round corner keeps baby safe when playing or learning with the sound board book.
4. 3 in 1 baby audio books integrates pre-recorded animal sounds, animal fur and colorful illustrations, great for baby’s early education and intelligence and imagination development.
5. All contents, languages, quantity of pushing buttons and pages, book size are workable according to your request.