Deadphones Vol. 2: A second life for headphones - digitec
Earpads & Headband for Sennheiser HD 418 419 428 429 439 438 448 449 Headphone | eBay
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