It is not thought of the original RFID tracking system also is really good, I really do not believe, because I really have not learned of these software or anything, but I feel when others use is particularly severe, the to this I am still see the RFID tracking system, and is also the colleague with I know later, really did not expect it, now the technology is increasingly developed, and especially the RFID tracking system is really too good, what a lot of documents all of a sudden it can still come back, this time I would like to learn it is special, the feeling is really special.