RFID tags, also known as radio frequency identification tags, are small electronic devices that can transmit information wirelessly using radio waves. They consist of a microchip and an antenna integrated into a tag or card. RFID tags are often used to identify and track objects or people. They make it possible to store and transmit information such as product codes, serial numbers or locations. This technology finds application in various areas such as logistics, retail, access control and much more.