Sennheiser 6.3mm Female to 3.5mm Male Adapter Cable
Point Source Audio XSE Series8 X-Connector for Sennheiser EW XSE
Amazon.com: LOL PARTY HD598 Cable Coiled Aux Cord Replacement for Sennheiser HD598 Cs HD599 HD569 HD579 HD558 HD518 Headphone Audio Cable with 6.35mm Adapter 4 to 12ft Long : Electronics
CANFORD DYNAMIC MICROPHONE RADIOMIC ADAPTER 3-pole Lemo for Sennheiser
Amazon.com: Replacement Cable for SENNHEISER Headphones HD650 HD600 HD580 HD535 HD545 HD565 HD265 with 1/4" 6.3mm plug : Electronics