Got an IE 100 Pro to replace my IE 40 Pro. Just realized how the transparent case became yellowish like in phone cases xD : r/sennheiser
Amazon.com: Sanpyl Earphone Replacement Cable, 3.5mm OFC Copper Headphone Upgrade Extension Cords, for Sennheiser IE40 Pro 3.9ft : Electronics
HiFi Occ DAC TYPE-C Earphone Cable for Sennheiser IE 40 PRO IE40PRO Mic Control | eBay
Silver Plated Audio Cable With mic For Sennheiser IE 40 PRO IE40PRO Headphones | eBay
Amazon.com: gotor Replacement Cable for Sennheiser IE 40 Pro IE40 Pro 7N Silver Plated Copper Extension Cord 1.2m 3.9Feet (3.5mm 3 Pole) : Electronics
IE 40 PRO BLACK | Sennheiser
Amazon.com: okcsc MMCX Cable to IE40Pro(Earphone Side) Adapter Work for MMCX Cable Connected to SENNHEISER IE40 PRO Earbuds Adapter Black : Electronics
Audio Cable for Sennheiser IE 40 PRO IE40PRO, Replacement 120cm Headphones Cabale - Walmart.com