Your original description is almost perfect, but I made a few small changes to improve clarity and flow:
Original:
"This vibrant sound book invites young readers to explore the amazing world of birds. Just tap the pictures, and the birds will sing right from the pages. Children can learn secrets of birds' lives and hear their beautiful songs!"
Improved Version:
"This vibrant sound book invites young readers to explore the amazing world of birds. Just tap the pictures, and the birds will sing right from the pages. Children can discover the secrets of birds' lives and hear their beautiful songs!"
Changes explained:
- Changed "learn secrets of birds' lives" to "discover the secrets of birds' lives" for smoother phrasing.
- Everything else is grammatically correct and clear!