GPS map and pick book is very convenient for travel.
GPS map,picker book have been added to memory function calculator with canvas,internet with back page function,mail.Each one has its own peculiarity.
1.This GPS map is very convenient when you are lost in a strange town.From your standing point to destination the red line will lead you.
2.Picker book is a new style machine book,quite different from old style electric book.You read book by one line each ,so, you can read very carefully.From this version, line number has been equipped in every 5 lines.This will help you to feel easy to read book.
Thank you very much.