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In view of the present market ,there are large numbers of intelligent touch-screen mobile phones .However,they are not used for the blind.So I designed this iphone case . It will be installed above the mobile phone screen .Through touching braille contact and information pattern on the surface, the blind can operate a mobile phone via the help of conductive material . Thus, it makes daily conversation, entertainment, and other mobile phone basic functions possible for blind people. Now just a cell phone case can let blind friends easily operate iphones.