Radio-Frequency Identification (RFID) technology is a form of wireless communication that uses radio waves to identify and track objects, such as shipping containers, animals, or people. It uses a tag, which is a small chip that stores data, and an antenna, which transmits and receives radio waves, to communicate with a reader. This reader can be used to read the data stored on the tag, which can be used to track items or identify people. RFID technology is used in a variety of applications, including tracking goods, managing inventories, and providing access control.