Different versions of Piggy Peggy's point-reading pen support different functions. It can make children learn in reading, stimulate curiosity, enhance their hands-on ability, master knowledge in games and improve their intelligence. For example: Piggy Peggy cognitive touch book? Page recognizes letters, and Peggy Piggy recognizes touch books? Page learns mathematics, Piggy Peggy's comprehensive cognition (basic edition), Piggy Peggy's comprehensive cognition (improved edition), 15 volumes of early education enlightenment, 5 volumes of Chinese studies enlightenment, 3 volumes of mother goose nursery rhymes, 35 volumes of the first series of English preparation for Pei-sheng children, 250 image literacy cards, and 1 volume of children's cognitive encyclopedia are all supported.