One Particular improvement I didn’t see coming was the uptick in battery lifetime. A full demand generates 24 hrs of ANC playtime, that is only two hrs over the QC45, but greatly appreciated. What about battery existence with ANC off? As with all Bose headphones, there’s no approach to disable https://www.linkedin.com/pulse/best-bose-headphones-muhammad-usama-khurshid-npuie/