Features: Brand new and high quality Replace the audio upgrade HiFi cable, dual 2.5mm to 3.5mm and 6.35mm. Made of high quality materials, high performance, wear resistant, elastic and stretchable, long service life. Black spring audio cable can be extended up to 5 meters in length. Gold-plated TRS plugs ensure you get HiFi and stereo sound. It has good electrical conductivity, bright and shiny surface, and strong corrosion resistance of silver layer. Twisted-pair cable can reduce signal transmission loss and the influence of current noise caused by magnetic flux outside the connection line. Therefore, high resolution sound with a sense of presence is realized. Compatible with Hifiman HE400S/HE-400I (old version with dual 2.5mm male plug)/HE560 (with dual 2.5mm male plug)/HE-350 / HE1000 / HE1000 V2 / AudioQuest NightHawk Headphones. Specifications: Type: Audio cable Wire material: oxygen-free copper Jack: Dual 2.5mm to 3.5mm and 6.3mm adapters Suitable for: for Hifiman HE400S/HE-400I (old version with dual 2.5mm male plug)/HE560 (dual 2.5mm male plug)/HE-350 / HE1000 / HE1000 V2. For HE400I The latest version is dual 3.5mm plug, the old version is dual 2.5mm plug. Package Includes: 1 x Headphone Cable note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!