RFID or radio frequency identification chips are used in this era. Supermarket products, dogs and human beings can be tracked with their logistics and location. RFIDs are small and they are empowered by the outside signals. Therefore, they can be easily hidden. They work on a radio therefore they require being in the area to read so they are more competent.
Printers, RFID tags and readers are competent with the contemporary standards. Posts responses, and radio signals are caught by the tags. It needs a small amount of power since the process is too fast. You may search for the RFID chip timing Fremont California for more information.