Otterbox Cell Phone Case for iPhone 4/4S - Retail Packaging - Immortal 3-Layer protection: equipped with three, rugged layers of protection: built-in screen protector, polycarbonate shell and synthetic rubber slipcover. Dust protection: sealed port covers stop dust, dirt and lint from clogging your jacks and inputs. Screen protector: built-in, ultra-clear membrane guards the touchscreen against Scratches and scrapes.