Specification: Item Type: Spring Audio Cable_x000D_Weight: Approx. 70g/ 2.5oz_x000D_Wire Material: Oxygen-Free Copper_x000D_Wire Core Material: Bare Copper Wire_x000D_Size:_x000D_Length: Approx. 1.4m/ 4.6ft_x000D_Stretching Length: Approx. 3m/ 9.8ft_x000D_Product Plug: 3.5mm Stereo Plug Shipping with 6.35mm Conversion Plug_x000D_Fitment: for ATH-M50X M40X headphoneand the playback audio source with 3.5mm national standard Interface, can be compatible with mainstream equipment in the market. Features: 1OFC wire core can read data quickly and transmit the high?fidelity sound to your devices. 21.4m wire length, the stretching length is about 3m, shipping with 6.35mm conversion plug, more convenient to use. 3Wire core is made by OFC copper, which has excellent electrical conductivity, bright surface, high corrosion resistance and longer service life. 4Twisted pair can reduce the impact of current noise, and can realize high resolution sound with the feeling of a presence. 5Effectively improve the resolution and separation of the headphone, so that the sound can be more transparent and natural. 6Fit for ATH?M50X M40X headphone, meet your different needs. PackageList: 1 x Audio Cable 1 x Conversion Plug