RFID or radio frequency identification is known as a microchip. Its size is like a piece of grain with an antenna. The diameter ranges between one and four inches. Useful information of the user like name, account address and others are stored in the chip and they can be decoded also.
There is no power source of these chips. The RFID reader produces frequency that can power these chips. In order to get more information on this regard, it is effective to search for the RFID chip timing Modesto California on the Internet.