Amazon.com: Earla Tec Replacement Audio Cable Cord Extension Wire for Bose QuietComfort QC25 QC35 Headphones with in line Mic Volume Control (Black) : Electronics
Thore 2.5mm to Lightning Cable for Bose QC25, QC35, and
Thore MFi Lightning to 2.5mm Audio Cable with Remote/Mic for Bose - Gray - Encased
Amazon.com: Tobysome Replacement QC25 Headphone Cable, 3.5mm to 2.5mm Audio Cable Cord Wire for Bose QC25 QuietComfort 25 QC35 QC35II QC45 Headphones with Inline Mic Remote Volume Control (Black) : Electronics
BT5.0 Bluetooth Adapter for Bose QC 25 QuietComfort 25 Headphones (QC25) Support iOS and Android smart phone - AliExpress
Bose QuietComfort 25 review: The best noise-canceling headphones get better - CNET