1, 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.
2, Replacement audio Upgrade cable with 4-pin XLR Balanced Male Walnut Wood Shell 6N OCC Copper Silver Plated Cord 4-pin XLR Balanced Cable Compatible with Sennheiser HD650, HD600, HD580, HD660S, HD58X, HD565, HD545, HD535, HD525, Massdrop HD6XX headphones, Extension Cords
3, 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
4, 4, Connector: 4-pin XLR Balanced Male to the jack for HD650, HD600, HD580, HD660S, HD58X, HD6XX headphones
5, the connectors shell are made of the walnut wood / Solid Wood - Walnut + Brass Gold Plated