What is a microchip and how does it work if you can't see it?
A microchip is the size of a grain of rice and is implanted under your pet's skin between the shoulder blades. Microchips are passive – they have no power supply or moving parts so nothing needs to be recharged or replaced. The microchip is completely bio-compatible and contains nothing that will burn, irritate or otherwise harm your pet.
RFID (Radio Frequency Identification) is the wireless use of electromagnetic fields; when a scanner is waved in the area where the microchip is implanted it transmits a low-power radio signal through its antenna to the microchip so the unique microchip number can be obtained.
Your pet's microchip is not a GPS enabled device - a microchip is a permanent, unalterable form of identification. In the event your pet is lost and scanned, the scanner will only display the pet's unique microchip number.