This animal tag is a small electronic button that contains an embedded microchip to animal identification and electronic management. Workers scan the ear tag with a handheld RFID reader that energizes the device and reads the number coded in the microchip. That information is then sent from the reader to a handheld device that holds all the data on each individual animal. The tags are durable, and with proper placement should last the life of the animal.So the electronic ear tag can record the ear number of each animal along with its breed, source, production performance, immune status, health status, owner and other information.