This document discusses radio frequency identification (RFID) technology. It defines RFID and describes how RFID tags transmit information to readers when passed through a radio frequency field. The document outlines the different types of RFID tags based on frequency and read range and provides examples of common applications that use each type. It also includes a table comparing RFID tags across frequency, read range, data speed, cost and example applications. Finally, it discusses the benefits of RFID technology in different industries such as enhanced customer satisfaction, improved efficiency, increased inventory turnover and reduced costs.