... (5) optical camera, (6) VOL+ (7) VOL- (8) recording button (9) earphone jack (10) charger and USB jacks. Functions:1. point ... , tapping recognition, scene explanation and so on.1)Kids’ education: kids’ books, kids land pad, kids maps, stories, growing diaries, audio photo albums…2 ... .Recording for the books;8.Editing scripts of books and the sounds of the contents: 9.Production of reading pens;10.The ...