Bose QuietComfort 35 II/QC35 II Wireless 2018 Review - RTINGS.com
My new Bose Qc 35 II. I have tested both this and sony XM4 and gone with Qc35II.So much happy specially with 4.8.1 firmware. I wonder it is competing with 2020 XM4
Petition · Bose change and take down the 4.5.2 and 3.0.3 firmware for QC35 and QC35II · Change.org
Bose Now Lets You Downgrade Firmware of QC 35 If You're Facing ANC Issues | Beebom
How to update the firmware of your Bose Headphones/Earphones, Speakers, etc. on your computer ? - YouTube