ALBUQUERQUE, N.M. (WHAT THE TECH?) — A previous What the Tech showed you how NFC tags can help with so many aspects of your lives just by scanning them with your smartphone. But how do you set them up ...

We've shown you how plastic discs or tags can start timers, play music, send notifications, and more just by tapping your phone on them. It's because in these discs, are a computer chip and antenna.