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You can control the tint on these smart-sunglasses using a slider on a smartphone app - Yanko Design
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Mannys Eyewear - Photochromic or transition lenses are lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. It is one of the coolest inventions in the
You can control the tint on these smart-sunglasses using a slider on a smartphone app - Yanko Design
Smart sunglasses change tint with the click of a button and can even take phone calls | Daily Mail Online