A microchip is there in RFID tag or transponder. A little amount of data is stored in this tag. A built-in antenna is there for transmitting the information through radio waves to the RFID reader within a short distance. There are two types of RFID tags such as active and passive tags.
Active tags have built-in battery and passive tags do not contain battery to transmit the signal. Passive tags are cheaper compared to active tags. In order to get more information in this regard, it is recommended to search for the RFID chip timing Topeka Kansas on the Internet.