Which point-of-sale technology was first implemented in major airport terminals to allow passengers to complete purchases without stopping at a checkout counter?

Modern transportation hubs are evolving into sophisticated retail environments. Airports, train stations, and transit centers now generate significant revenue through carefully designed retail operations. This poll tests your knowledge of an innovative point-of-sale technology that's transforming how travelers make purchases in these high-traffic environments.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

RFID-enabled mobile scanners that allow staff to process payments anywhere in the terminal
Just Walk Out technology using computer vision and sensor fusion to automatically detect taken products
Self-checkout kiosks with biometric authentication using fingerprint recognition
NFC-enabled smart shelves that charge products to a passenger's airline app when removed