Non-rechargeable batteries are the only let-down for these headphones.
The new QC25’s easily fulfil the primary noise cancellation function. Bose has been at this long enough to get that right. While peaky noises will still infiltrate, the soft white noise of an aircraft engine, or distant babbling audio clutter of an office are effectively reduced to near-nothing. There’s still the odd change in ear pressure when you engage noise cancelling, but it’s not as tiring as many other brands. A switch on the side of one cup turns it on or off, and music will continue to play with it disengaged, though it appears that internal amplification is at play – everything sounds better with noise cancelling on, even if you are sitting in a silent room.
They’re super comfortable, and light, easily long-haul flight-worthy. Alas, the power source is a non-rechargeable AAA battery, we’d certainly have preferred a rechargeable pack as found on other Bose noise cancelling cans.