Amazon.com: GEEKRIA Audio Cable with Mic Compatible with Sennheiser Momentum 4, PXC 550, PXC 550 II Cable, 2.5mm Aux Replacement Stereo Cord with Inline Microphone and Volume Control (4 ft / 1.2 m) : Electronics
Bose QuietComfort 35 II vs Sennheiser PXC 550-II - SoundGuys