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Use the SD-X Interactive Reader pen in these Encyclopedia Britannica science books to play learning games and to hear facts, sounds, word definitions and more.
- Each book has approximately 3 hours of audio
- Touch battery-powered pen to highlighted words and pictures to activate
- Includes: SD-X Interactive Reader & 3 books
- Books include: Animals, Under the Sea & Dinosaurs Reptiles and Birds
- 8.75"H x 11.25"W x 2.31"D
- Ages 7 years & up
- Uses 2 AAA batteries (included)