Sennheiser Replacement Advanced Ear Adapter For IE / CX Earphones - Large (5 Pairs)(Double Mold) - Custom Cable
Amazon.com: Airfrex Bluetooth Adapter Receiver with 2.5mm Jack for Sennheiser Momentum 2.0 ON Ear and Over Ear Headphones, Sennheiser Momentum 2.0 Headphone Cable Cord Replacement Connector Converter : Electronics
Sennheiser OP - CX 1.00 / 2.00 / 100 black - - Ear adapter black for CX 1.00, CX 2.00, CX 100, CX 150 BT, CX 350 BT
Sennheiser OP - CX black - - Ear adapter black for CX 300 S, CX 3.00, CX 5.00, CX 6.00 BT, CX 7.00 BT, CX SPORT, MOMENTUM In-Ear, MOMENTUM InEar Wireless, MOMENTUM Free