You are bidding on a New Stock length of genuine Sennheiser HD650 headphone cables in their original factory sealed packaging. This is a popular upgrade for the stock Sennheiser HD580 and Sennheiser HD600 cables. This cable is 3m/9.84ft long, terminated with gold vaporized 1/4" stereo plug and uses Sennheiser"s proprietary Oxygen Free Copper (OFC) conductors and an updated two-prong connectors on the headphone end to ensure a high level of fidelity and reduce microphonics.