My sister told me that she is now very clear that some goods to buy their own on the road, hear my sister said that I asked his sister how did she know, my sister told me that she is now available through the RFID tracking system can clearly know their goods are now in what place at what time, to her hand, heard her sister said that I said this RFID tracking system is really so good, if so they can understand their own situation whenever and wherever possible the purchase of goods, to my sister to listen to say that that is particularly convenient, does not need to worry about their goods the loss of the.