Amazon.com: Sennheiser Consumer Audio HD 560 S Over-The-Ear Audiophile Headphones - Neutral Frequency Response, E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S) : Electronics
Amazon.com: Sennheiser HD 4.50 BTNC Bluetooth Wireless Headphones with Active Noise Cancellation, Black and Silver (Discontinued by Manufacturer) : Electronics
Sennheiser HD 450BT Noise-Canceling Wireless Over-Ear 508386 B&H
Jbhelth 2Pcs Replacement Ear Pads Eapads Cushion for Sennheiser HD 4.50 HD4. 50 BTNC Headphones - Walmart.com
Amazon.com: Audio Replacement Cable with in-Line Mic Remote Volume control Compatible with Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphone and Compatible with Samsung Galaxy Huawei : Electronics