The inside cable is made of the 6N OCC copper Single Crystal Silver Plated wires, each side include 2 strands *(0.08mm*25 cores + 0.08mm*37 cores) 6N OCC copper Single Crystal Silver Plated wires, that Superb Premium Wire, Independent Shield among L, R . Soft enough and comfortable ; the outside cable is made of the Black Thermostable Braided Tangle-Free cable, which has excellent temperature resistance range: -65℃~300℃ Connector: 6.35mm Male, the connectors shell are made of the walnut wood / Solid Wood - Walnut + Brass Gold Plated Cable Length: 2meters(6.6ft); cable diameter: The diameter of the main body cable is 5mm. And the diameter of the branch cable connected to the earphone is 3.2mm. Package include:1*replacement cable This replacement cable is compatible with Audeze LCD-2, LCD-4, LCD-3, LCD-X, LCD-XC, MM-500, LCD-5 Headphones The 6N OCC copper Single Crystal Silver Plated wires provide clear sound, and a protective layer is added to eliminate noise interference problems, you will enjoy matchless HiFi sound and maintain original sound quality of your headphone, Extension Cords