Drop TRRS 2.5MM BALANCED HEADPHONE CABLE FOR SENNHEISER HD6XX, HD650, HD600, HD580, HD58X, HD660S | Reverb
High quality Replacement Cable For Sennheiser HD598 HD558 HD518 HD595 HD599 Headphone cable 3.5mm to 2.5mm Headset Audio Cable - AliExpress
AMNHDO 3.5mm to 2.5mm Audio Cable Wireless Headset Cord for Sennheiser HD4.40BT - Walmart.com
Amazon.com: Cubilux 3.5mm to 2.5mm Headphone Cable with MIC Compatible with Bose QuietComfort 45/35/25 Noise Cancelling 700, Sennheiser PXC 550/480, JBL Tune 760/750/710/700/660/600 Live 660/650/500/460/400, 4 FT : Electronics