... Books 2. 28 Pages / Book. 3. Kids' song, Play game. Learning Touch Pen kits for children. OEM, ODM ... to teach the talking pen and sound audio books. 3. Optional audio books: 72 audio books4. Each ... to 8GB;* USB, High speed USB2.0;* Earphone, 3.5 mm standard earphone slot;* Battery, 300 mah ... for kids, Touch Talk Pen, Talking Pen with Book, Recording Talking Pen, Oid Talking Pen, Book Reader Pen, ...