SENNHEISER PXC 550-II Wireless NoiseGard Adaptive Noise Cancelling, Bluetooth Headphone with Touch Sensitive Control and 30-Hour Battery Life, Black
Geekria QuickFit Protein Leather Replacement Ear Pads for Sennheiser PXC 550 PXC 550-II Wireless MB 660 Series Headphones Ear Cushions, Headset Earpads, Ear Cups Repair Parts (Black)
Amazon.com: Linkidea Headphones Carrying Case Compatible with Sennheiser PXC 550, PXC 550 II Wireless, PXC 480 Case, Protective Hard Shell Travel Bag with Cable, Charger Storage (Black) : Electronics