1Made of 8 OCC silver plated wire, soft, high frequency smooth and good extension. 2The medium frequency is clear, the low frequency control is in place, and improve the overall transparent and clear sound of high frequency, provide delicate and natural voice. 3Adopt high quality material, soft but not easy to broken, longer service life. 4Sophisticated technology, can seamlessly transmits stereo audio, provide better listening experience. 5Fit for Sennheiser HD600/ HD580/ HD650/ HD660s headphone, meet your different needs. Item Type: Headphone Audio Cable Material: Metal Size: Wire Length: Approx. 1.2m/ 3.9ft Wire Outside Diameter: Approx. 3.0mm/ 0.1in Wire Material:OCC Silver Plated Cable Craft:Silver Plated Fitment: for SennheiserHD600/HD580/HD650/HD660s and other playback audio source interface for the national standard 3.5mm can be compatible with the mainstream equipment in the market. 1 x Audio Cable