In 2011, Microsoft UK teamed up with charity Guide Dogs to create ‘Cities Unlocked,’ an organization that worked to create a headset designed to help the visually impaired. That device came last year, but now it’s received some major hardware and software upgrades. Although the original simply used bone conduction to send audio clicks and cues to guide the user around, the latest iteration is less of a practical tool and more of an information-rich service. It uses something called “3D soundscape technology,” which is kind of like a GPS that describes everything that’s around them, from local cafés to alerts telling them when a bus or train is approaching the stop.
Source: Tech Insider