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Bose claims the latest QuietComfort 45 headphones come with world-beating ANC, 24-hour battery life and high-fidelity audio

The QC 45s are here. (Source: Bose)
The QC 45s are here. (Source: Bose)
Bose has launched the latest generation of its QuietComfort line of headphones. The OEM asserts that these new 45s live up to their name with a "lightweight" design, not to mention "world-class" Acoustic Noise Cancelling technology. The new Bluetooth 5.1 accessories will be released in September 2021.

Bose QuietComfort is a name often encountered as something else to think about when considering the purchase of headphones such as those of the Sony WH-1000XM series. Then again, even the 35-series generation suffers from some disadvantages in comparison, particularly as they launched with micro-USB rather than type-C ports for charging. However, the iconic US-based audio OEM has finally addressed this potential drawback in the new QuietComfort (or QC) 45s.

Bose estimates that this upgrade allows the QC45s to charge from 0 to 100% in 2.5 hours, or enough for 2.5 hours' worth of playback after just 15 minutes of charging. Otherwise, the headphones look much like their predecessors, with the exception that the ruffled look to the outer rim of their earcups has been ironed out in the 45s. Nevertheless, their maker still asserts that the levels of silence and user enjoyment is in force the second the user puts them on.

This is achieved at least in part to something Bose calls Acoustic Noise Cancelling technology, based on "more than 50 years" of in-house research. Therefore, it may not seem like the personal-audio spec usually indicated by its acronym; however, as Bose describes it as a technique by which external mics constantly monitor environmental noise so that the QC45s' internals can adapt to and neutralize it on the fly, the 2 definitions pretty much amount to the same thing.

On the other hand, the new QC45s also support Aware Mode, by which some outside sounds are dialled back in so the user can stay alert to their surroundings while out in the world. Bose also, of course, claims to have packed its expertise in terms of actual playback into the new headphones, with developments such as its "exclusive" TriPort acoustic architecture and a "volume-optimized" active equalizer.

The new headphoness are also rated to fit right in with their first-party ecosystem, with Bose SimpleSync to co-ordinate seamlessly with any speakers or other products from the same brand around the user's house, voice-assistant support baked into their physical multi-function button and the Bose Music app for easy set-up on an Android or iOS device.

Therefore, the QuietComfort 45s now seem primed to pop right up in search results alongside other headphones typically pitched at a premium experience, their own 700 siblings included. They come in either Smoke White or Black, and are available to pre-order for US$329 from bose.com right now, for shipping on or around September 23, 2021.

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Deirdre O'Donnell
Deirdre O'Donnell - Senior Tech Writer - 5116 articles published on Notebookcheck since 2018
I became a professional writer and editor shortly after graduation. My degrees are in biomedical sciences; however, they led to some experience in the biotech area, which convinced me of its potential to revolutionize our health, environment and lives in general. This developed into an all-consuming interest in more aspects of tech over time: I can never write enough on the latest electronics, gadgets and innovations. My other interests include imaging, astronomy, and streaming all the things. Oh, and coffee.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 08 > Bose claims the latest QuietComfort 45 headphones come with world-beating ANC, 24-hour battery life and high-fidelity audio
Deirdre O'Donnell, 2021-08-31 (Update: 2021-08-31)