Compared with the ordinary books and MP4, Onda VK30 touch screen application, gives the user and machine more interactive applications, intelligent file search system is one of the highlights of the. The user can through the machine of the quick search, to find what you need to read books and music files, very convenient and practical. At the same time, VK30 also built-in intelligent handwriting recognition input function, the user can be in the screen handwriting input, search for files, screen, choice of dictionaries and other operations. Man machine interactive e-book industry development, also is a direction.