Item Type: Headset Upgrade Line Material: Oxygen Free Copper Colour: Black Wire Diameter: Approx. 2.5mm/0.1in Cable Length: Approx. 120cm/47.2in Plug Technology: Gold Plated Straight Plug Plug: 3.5mm Male to 2.5mm Male Suitable: For Sennheiser HD598 HD558 HD518 HD595 HD579 HD599 and Other Headphones1HIGH QUALITY MATERIAL: The wire skin is made of braid wire, which is soft and comfortable, resistant to tension and durable, fashionable and dynamic, and has a good overall sound field improvement effect, balanced three frequency, and a good overall sense of space. 2WIRE MATERIAL: The wire uses OFC, 5 core high quality wire, oxygen free copper material effectively improves the sound quality, the wire feels first class, and the hardness is moderate. Better sound range, strong and high quality, better high frequency extension. 3OXYGEN FREE COPPER CORE: Good conductivity, bright surface, corrosion resistance. Improve the resolution and separation of the earphones and eliminate the dark bass of the earphones. Reduce the influence of current noise caused by external magnetic flux through the connecting wire. 4PERFORMANCE: Cable length: 120cm/47.2in. Flexible headphone cord, easy to store. The earphone cable has a built in microphone and wire control function, which can adjust the volume, switch music, hangup the phone, etc. 5APPLICATION: The headset upgrade cable can be used with most mobile phones, tablets, laptops and other equipment. Suitable for Sennheiser HD598 HD558 HD518 HD595 HD579 HD599 earphones.Please allow some errors due to manual measurement.1 x Headphone Upgrade Line