HiFiKing Headphone Upgrade Cable / Headphones Replacement Cord for Sennheiser HD800 Audiophile Sennheiser Upgrade Cable / Headphones Replacement Cord Cable Material: Single crystal four-core Audio grade pure copper Plug: Acrolink 3.5mm Gold plated plug + HD800 pins Cable Length: 1.2M, High purity oxygen free copper Package Includes: 1 x Headphone Upgrade Cable