I really was not heard of the RFID tracking system, if you say, I think I still do not know this, so I don’t know how to thank you, Xiao Li is said to me, I think, this is really RFID tracking system good, but the RFID tracking system for it is very broad, if we know more about the RFID tracking system, it is of great benefit to us, because I know the RFID tracking system, so I went to do research, now we talk Xiao Li, also know that the RFID tracking system, I think he will further the understanding of the RFID tracking system.