iContact Waterproof Case for iPhone 4 and 4S - Retail Packaging - Clear/Black Prevents damage from sweat, rain, dirt, dust, snow, water or splashes It's easy to create waterproof seal - just insert phone and press the two sides together (instructions included) Waterproof sealed to meet IPX-7 standards with O-ring and metal screws Front and back Sharpvue lenses enables high-quality photos and videos through the case Intelli-Filter Design blocks water, not sound, allowing full mic and Speakerphone functions