For decades, the blind have used canes to get around. Now a special wristband gives them a ‘sixth sense.’

Fernando Albertorio easily blends into the flow of human traffic swirling around him, which is even more remarkable considering that he is doing so largely without the use of his limited vision. His secret: a wristband called Sunu that emits a high-frequency sound wave that bounces off objects as far as 14 feet in front of him before registering as a gentle, pulsing vibration on his arm. Read more at The Washington Post.

Categories: Technology

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