Item Type: Earphone Cable_x000D_ Wire Outer Diameter: Approx. 3mm / 0.12in_x000D_ Wire Material: Oxygen-Free Copper_x000D_ Wire Core Material: Bare Copper Wire_x000D_ Wire Color: Black TEP Wire_x000D_ Applicable Models: Fit for Audio-Technica E40/50/70 LS200/300/400/50 and other A2DC interface headphones_x000D_ Wire Length: Approx. 1.2m / 3.9ft_x000D_ Product Plug: Approx. 3.5mm / 0.14in_x000D_ Whether to Control by Wire: No_x000D_ Applicable Products: The playback audio source interface is 3.5mm, which can be compatible with mainstream equipment on the market._x000D_ How to Use: Plug and play1The twisted pair wire twists the hot and cold signal wires to offset the magnetic flux caused by the current, reducing signal loss. 2At the same time, it can reduce current noise effect caused by the external magnetic flux through the connecting wire. 3OFC copper wire core has good electrical conductivity, bright and shiny surface, corrosion resistance. 4Improve the resolution and separation of the earphones, and eliminate the dull feeling of the earphone bass. 5Restore the real sound, make the sound more transparent and natural, and bring a different listening experience.1. Please allow 0?1 inch error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1 x Earphone Cable