... ,Games,etc 4. OEM 5. 32 pages per book Preschool Reading Book This set of audio books including: National Studies, English, Pinyin, Cognitive, Literacy, ... with e pen. Talking pen for the sound books "Preschool Sound Book " The reading pen is a popular Kid's learning tool. ... , Chinese learning , game books,etc,. If customers need, we can help them to translate these book to their own language. main ...