How to replace Cable on Sennheiser Momentum 1 & 2.0 Over-Ear Headphones - YouTube
Amazon.com: Replacement Audio Cable line 1.5m for Sennheiser Momentum 2 1.0 2.0 3.0 HD 4.40 BT HD4.50 HD4.30i hd 400s 3.5 to 2.5mm Headphones Cable Wire with Mic Control for iPhone iOS Android : Electronics