What characteristic best describes an AR headset?

What characteristic best describes an AR headset?

  • a head-mounted device that superimposes images and audio over a real world image and can provide users immediate access to information about their real surroundings
  • an input device allowing users to pay for a product by tapping their credit card or smartphone on another device
  • an input device that reads barcodes affixed to most retail products
  • an input device that reads encoded information from the back of plastic cards