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telligence to not only detect obstacles but also their nature."Not only is the warning that I am facing an obstacle relevant,but also the information about what kind of obstacle I amfacing.Because it makes a big difference whether it's a wall,acar or a staircase,"Markus Raffer,one of the founders of Tec-Innovation,visually impaired,told TechXplore.The current version of the InnoMake shoe is already available forpurchase on the Tec-Innovation website,for e3,200 per pair.The ad-vanced system is in the front of the shoes,in a waterproof and dust-proof case.It is powered by a heavy-duty battery that can last forup to one week,depending on use.The battery can be charged injust three hours,using a USB cable.The next step for Tec-Innovation is to use the data collected