Hifi 2.5mm Trrs Balanced Male 8 Core Silver Plated Cord Cable For Sennheiser Hd580 Hd600 Hd650 Hdxxx Hd660s Hd58x Hd6xx - Audio & Video Cables - AliExpress
Audio Cable, 2.5mm to 4.4mm, 1m
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
Amazon.com: 2.5mm Balanced Headphone Cable Compatible with Sennheiser HD600 Cable, HD 660S2, HD 660 S, HD 650, HD6XX, HD58X / 5N OCC Silver Plated Braided Cable for M17, M15, M11 Pro, K3,
4.4mm BALANCED Audio Cable For Sennheiser HD598 Cs SR SE HD599 HD569 HD579 | eBay