Bose QuietComfort 35 (QC35) comes with the most comfortable and foldable design, the most powerful noise reduction system, the excellent sound quality for a Bluetooth headset, the hands-free performance. The presence of a cable to use it in wired mode.

However, the battery cannot be changed by the user. The weight is greater than that of the QuietComfort 25.


The Bose QuietComfort is the ultimate Bluetooth headset with noise reduction that you can now find. Here is the Bose product that many were waiting for: the QuietComfort 35 is a wireless headset with active noise reduction is better than the QuietComfort 25.

Although these two models are very close in terms of design, the QC35 is a bit heavier: 310 gr against 196 gr. The main evolution of the QC35 is the wider band which increases the stability.

Active noise reduction system

Bose explains that its active noise reduction system relies on microphones placed inside and outside the headphones. Unwanted sounds are processed by two processors, one for each ear, that respond in a fraction of milliseconds. The battery life is given for 20 hours, which is rather very good. But Bose has opted for a built-in rechargeable battery instead of the QCA’s AAA batteries. Personally this change does not bother us. But some people prefer to change the batteries if necessary, for example in the middle of a flight or a train trip.

The good news is that the headset can be used in wired mode via the supplied cable. On the other hand, noise reduction does not work in this configuration. But the earphones isolate well enough to eliminate a lot of unwanted ambient sounds.

The option of cable is also appreciated when traveling by plane because some companies restrict the use of Bluetooth. The cable is also useful to connect to the seat and access the multimedia system of the device. This is one of the disadvantages of the QC30 In-Ear Headset which has an adaptive noise reduction system but does not have a wired mode.

A built-in remote

Other options in the QC35 include a built-in remote control to the right earphone to manage volume, playback, and answer / end phone calls.

The headset is compatible with the Bose Connect application for Android and iOS. We have associated it without any problem with an iPhone 6s, a Samsung Galaxy S7 Edge and a MacBook Air. Two devices can be connected simultaneously and switched from one to the other.

Smooth connectivity?

The Connect application is likely to evolve, but it is pretty basic at the moment. It is mainly used to manage the list of associated devices, update the firmware and change the auto power off setting. When the headset is switched on, a female voice will indicate the remaining battery level and the device to which it is connected.

Classy Colors

The QC35 is available in black and silver. It can also be used as a headset for hands-free calls and can alleviate sounds such as the wind or the hubbub of the crowd.

There is also a system which allows one to hear one’s voice when one speaks so as not to have to raise the tone. The operation is really very good, especially for conference calls. The QC35 and elsewhere superior to QC25 in this field.

Sound: excellent for Bluetooth

The QC365 may not be the best Bluetooth headset for sound, but it is part of it. As for the audio quality, the Bose is not up to the Sennheiser whose basses are a little more precise and the sound more natural. It is currently our favorite headphone for audio quality. On the other hand, the noise reduction system of QC35 is more efficient and clearly superior. Bose is truly a reference in this field.

Like the Sennheiser, the Beats Studio Wireless offers less noise reduction. The sound is warmer than on the QC35 but the latter is clearer and its bass more definite. In wired mode, the sound of the QC35 is a bit better. Indeed, despite all the efforts of the Bose engineers, Bluetooth results in an inevitable loss of quality.

Enhanced audio qualities

We tested the audio qualities of QC35 in the company of our home audiophile specialist Steve Guttenberg and agreed that he was a bit shrill in the treble. With some pieces, the sound was very close to what one can get with wired headphones. But on other titles the rendering was not as satisfactory. These are nuances that the average listeners will not detect but which will not escape the audiophiles.

In wired mode, the bass is a little more precise and the clarity improves slightly. The difference is not enormous, but it exists. Ultimately, our feeling is that, out of putting its audio quality, what makes the QC35’s whole interest is the performance of its noise reduction system, its comfort level and its quality in hands-free mode. And we would have no hesitation in spending more for this model instead of QC25.