1、OFC wire core can read data quickly and transmit the high‑fidelity sound to your devices. 2、4m wire length, the stretching length is about 3m, shipping with 6.35mm conversion plug, more convenient to use. 3、Wire core is made by OFC copper, which has excellent electrical conductivity, bright surface, high corrosion resistance and longer service life. 4、Twisted pair can reduce the impact of current noise, and can realize high resolution sound with the feeling of a presence. 5、Effectively improve the resolution and separation of the headphone, so that the sound can be more transparent and natural. 6、Fit for ATH‑M50X M40X headphone, meet your different needs. 1 x Audio Cable1 x Conversion Plug Item Type: Spring Audio CableWeight: Approx. 70g/ 2.5ozWire Material: Oxygen-Free CopperWire Core Material: Bare Copper WireSize:Length: Approx. 1.4m/ 4.6ftStretching Length: Approx. 3m/ 9.8ftProduct Plug: 3.5mm Stereo Plug Shipping with 6.35mm Conversion PlugFitment: for ATH-M50X M40X headphoneand the playback audio source with 3.5mm national standard Interface, can be compatible with mainstream equipment in the market.