The document discusses Radio Frequency Identification (RFID) technology. It describes how RFID works by using radio waves to transmit data stored electronically on tags attached to objects to a reader. A basic RFID system consists of tags containing chips and antennas, readers and antennas, and application software. The document also lists some advantages of RFID such as its ability to read through materials and hold more data than barcodes. Potential disadvantages mentioned include higher costs compared to barcodes and issues with some materials interfering with RFID signals.