Headphone Adapter manufactured by YD ELECTRONICS &trade; for iPhone 5S Lifeproof&reg; Cases - Set of 3 Fits Lifeproof Cases for iPhone 5S YD ELECTRONICS Brand not OEM, Ships from LOS ANGELES not China All metal parts are Nickel Alloy for better corrosion resistance. ABS Plastic Resin body for durability. Nitrile black O-ring to guarantee waterproofing.