Youkamoo 2.5mm 8 Core Braided Silver Plated Replacement Cable Compatible with Hifiman HE4XX, HE-400i Headphones 2.5mm to Dual 3.5mm Male, 8-Core Copper Silver Plated Cord

Dual 3.5 mm Male Version that be putted into headhone plug, it only Compatible with HE4XX, the latest version HE-400i with Dual 3.5 mm plug headphones, it doesn't fit the old version HE-400i headhone with Dual 2.5 mm Male Version ^^ 2.5 mm Balanced to Both 3.5 mm Headphones Extension Cords, The tight woven exterior protects against tangling, wear, and tear, ensuring longevity even with daily use. ^^ 6 feet ( 1.8 meters), this cable provides ample reach for desktop setups, studio use, or relaxed listening from your favorite armchairallowing you to move freely without being tethered too closely to your audio source.

^^ 8-Core
Silver-Plated Construction: 3.6 mm (8 x (1mm x 19 cores) ), combining strength and flexibility. Each strand consists of 19-core silver-plated copper wires (1mm per core) for superior conductivity and minimal signal loss. ^^ Dual 3.5 mm Male Version that be putted into headphone plug, Compatible with HE4XX, the latest version HE-400i with Dual 3.5 mm plug headphones, it doesn't fit the old version HE-400i headphone with Dual 2.5 mm Male Version