Seadream 2Pack Replacement 3.5mm Headphone Extension Cable Wire Cord Adapter with Jack Cover Seal Plug for iPhone 5s Waterproof Case 3.5mm male to female headphone adapter cord for iPhone 5S waterproof cases, Works with any device equipped with standard 3.5mm audio jack or AUX-in port ust cover plug and dust cover plug keeper attached to cord, Dust plug screw on to seal (do not over tighten or plastic plug or case housing may crack) Talk or listen to music/video on (your phone in waterproof case) without worry of water damage Fits all different waterproof cases on the market, Perfect replacement for lost or damaged jack cover / wire Easy to create waterproof seal - just insert phone and press the two sides together