RFID is a technology which is related to identification of products or storage of data. It can be utilized where barcode method fails. This is more advantageous compared to bar code system. RFID tags are not needed to be placed near the reader or scanner to access the information inside them.
It is possible to access that information from a certain distance. High frequency devices transmit the data to the RFID reader or scanner. You may search for the RFID chip timing Killeen Texas on the Internet for obtaining more helpful information on this subject.