Amazon.com: ATH-M50x Cable Coiled Aux Cord Replacement for Audio Technica M40x M70x Wired Headphones, 2.5mm to 3.5mm(1/8") Extension Wire with 6.35mm(1/4") Adapter, 14ft : Electronics
6.35mm Plug Replacement Audio Repair Parts Spring Cable For Sennheiser HD518 598 595 For Audio Technica ATH M50X M40X Headphones|Earphone Accessories| - AliExpress