Imagine being on a walking tour of Venice, Italy with your family. As you pass points of interest, the sunglasses you are wearing "know" where you stand and even where you are looking. With this information, the sunglasses provide location-specific audio covering historic buildings, pieces of art, and canals along your route. Maybe as you pass the childhood home of Antonio Vivaldi, The Four Seasons begins to play. While all of this might sound like something from the distant future, it's the exact experience that Bose will be selling for $199 by way of the Bose AR system. In this article from PC Magazine, they explore this new technology and provide a look into the larger, evolving world of "augmented reality."