FosPower (25 Feet) 3.5mm Male to 3.5mm Female Stereo Audio Extension Cable Adapter [24K Gold Plated Connectors] for Apple, Samsung, Motorola, HTC, Nokia, LG, Sony & More Connectors: 1 mini-stereo (3.5mm) male to mini-stereo (3.5mm) female 24k gold plated connectors resist corrosion and reduce tarnish. Quality 3.5mm Extension Cable Copper braided and aluminum foil shielding provide cable flexibility and greatly reduce undesired EMI/RFI interference Polyethylene Foam (PF) dielectric insulator greatly minimizes signal loss Tin plated copper core reduces oxidation and increases wire life