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
Cable 3m, 3.5mm and Adapter – Sennheiser
Silver Plated Audio Cable With mic For Sennheiser IE 300 IE 600 IE 900 IE 200 | eBay
Sennheiser BB25 RG58 Coaxial Antenna Cable with Male BNC BB25