Amazon.com: HD598 Coiled Cable with Lock Connector Replacement 1/8" and 1/4" to 2.5mm Male AUX Extension Cords Compatible with SENNHEISER HD6 HD7 HD8 HD515 HD518 HD558 HD579 HD595 HD599 HD598 SE Headphones :
Replacement Cable Sennheiser Headphones Hd | Sennheiser Hd 598 Replacement Cable - Protective Sleeve - Aliexpress
Genuine SENNHEISER Short Cable for HD598 SR HD598SE HD599 HD558 HD518 HD 569 579 | eBay