Headphones Audio Cable for Sennheiser HD518 HD558(With Microphone) - Walmart.com
6.3mm OFC Replacement Audio Cable Extension Cord for Sennheiser HD4.40 HD 4.40 BT HD4.50 HD 4.50 BTNC HD4.30i HD4.30G Headphones|Earphone Accessories| - AliExpress
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
4.4mm BALANCED Audio Cable For Sennheiser HD 4.30i HD 4.30G 4.40BT 4.50BTNC | eBay