About this item Replacement audio upgrade cable compatible with HD650, HD600, HD580, HD660S, HD58X, HD565, HD545, HD535, HD525, HD265, Massdrop HD6XX headphones. This cable is made with superb premium wire, featuring independent shielding for left and right channels. It is soft and comfortable, utilizing OFC wire for optimal performance. Length: 3.94 x 0.79 x 0.39 inches, package includes 1 replacement cable (headphone not included). Its jack is a 3.5mm male with a 6.35mm adapter, ensuring compatibility with the specified headphone models. Size description: 3.94 x 0.79 x 0.39 inches.