Drop TRRS 2.5mm Headphone Cable for Sennheiser | Audiophile | Audio & Video Cables
Amazon.com: NewFantasia Replacement Audio Cable with 2.5mm Trrs Balanced Male Compatible with Sennheiser HD598, HD598 SE, HD598 Cs, HD599, HD560s, HD579 Headphones 6N OCC Copper Silver Plated Cord : Electronics
4.4mm 3.5mm 2.5mm Balanced Audio Cable For Sennheiser Hd 595 558 518 598 Cs Se Sr Hd 599 569 579 Hd 2.30i 2.20s 2.30g Headphones - Earphone Accessories - AliExpress