Amazon.com: Sqrgreat GSP 500 Replacement UNP PC Cable Nylon Braided Cord Compatible with Sennheiser Game Zero Game ONE, GSP500 GSP600 GSP350, PC 37X PC 373D Gaming Headphones, black, 6.6FT : Video Games
Sennheiser Black Cable for IE 400/500 BLACK CABLE FOR IE 400/500
Sennheiser HD 500A Over-Ear Headphones - Studio MADE in IRELAND - electronics - by owner - sale - craigslist
Amazon.com: Geekria Audio Cable Compatible with Sennheiser HD 599 SE, HD 599, HD 598, HD 598 SE, HD598 CS, HD 598 SR, HD 560 S, HD 400 PRO, HD 579, HD 559
Silver Dragon V3 Cable for Sennheiser HD500 Series Headphones