Until scientists perfect bionic vision, shouldn't there be a better way for the blind to get around than a simple cane? That's the idea behind Sentiri, a proximity-sensing headband that helps steer users around by motor-driven haptic feedback. It detects objects in the environment using infrared depth sensors, then varies the level of vibrations to the user's head to help them avoid obstacles. If it's connected to a smartphone with an app like Google Maps, the tool can also safely guide you from point 'A' to point 'B.' The company behind it, Chaotic Moon, also created a "haptic language" that transmits extra information to users by changing the frequency, intensity and number of vibrations.