A Very High Quality 3.5mm Audio Extension Cable, made from Pure Oxygen Free Copper with 24k Gold Plated Contacts. This cable is Rohs Compliant for the highest material standards in the EU. Note, this is a Standard (2 Pole) 3.5mm Stereo Extension Cable. Please ensure you are not trying to extend a 3 Pole Set of Headphones or device. Simple check would be to count the amount of rings around the 3.5mm plug. If it has 3 rings