Miguel Pengel on Instagram: "RFID (Radio Frequency Identification) checkout uses item tags with microchips and antennas to wirelessly transmit product data. A reader sends out a radio frequency signal that powers the chip and retrieves the item info—no barcode scanning needed. It can read multiple items at once, speeding up checkout. After payment, the system deactivates the tag’s security function to prevent exit alarms. #engineeredagainstyourwill"