VWTECH Newest Aluminum Hard Metal Corning Gorilla Glass Shockproof Dustproof Snowproof Water Resistant Protective Case for Sony Xperia Z1 (Black with red button) Corning Gorilla Glass for Screen Protection for Seamless Touchscreen Protection,High Impact Ballistic Bezels with Low Profile Pocketable Construction 9mm Patent Pending Shock Absorbing Impact Truss for Maximum Protection  Sealed Audio and Charging Ports,Secure Screw Closure  Direct Access to All Ports and Features of your phone It will not interfere the proximity sensor causing unwanted screen off when calling shockproof/ Dustproof/ Water Resistant+ dust resistant acoustic port protection. With it, you can still charge it, press all the buttons and answering/calling phone. Fashion design, easy to put on and easy to take off, it comes with the screwdriver to remove/install the screw on the side of the face Tempered glass protects the Phone fragile screen with anti-fouling and anti-glare function. The silica gel seal packing and gasket, let the phone has a good Water Resistant function, General sand, dust can't get into it !