I have always been somewhat dubious about the noise-cancelling effect of any headphone, but gave these a try given a loud office space and the need to focus on a particular project. Wearing these feels like I'm in a soundproof booth and it's a game changer. The audio for calls is great, too. Would strongly recommend for travel and productivity.

I bought these headphones to use on the plane when I travel. However I've been using then recently when I'm in bed and can't sleep and let me tell you they cut out all noise. The battery life is great so far, I'm not sure how many hours exactly because I fall asleep with them on and wake up and turn them off over several days. Sound quality is on point with what I expect from a Bose product. Would buy again.

I bought these about a month ago. I also have the Sony WH-1000XM4 headphones and prefer these over the Sony for comfort and music quality. The noise cancelling isn't as good but honestly it's fine because it's way more comfortable to wear, lighter, and the sound quality has much more depth and sharpness compared to the Sony ones. These QC45s are my go-to for most things and I am obsessed!

Love my Bose… 2 years ago I struggled between these Bose and another popular brand. Unfortunately, I went the other way… won't do that again. Purchased the QC45 Bose and could not be happier Comfortable, no ear strain, strong headband, and the quiet mode! Is very quiet. Bose app is easy to use and works well The EQ is not perfect, but I'm satisfied with the sound quality.

After couple of weeks of usage, I am happy to have upgraded from QC35. The new aware feature works really well for me watching sports on TV while still able to take orders from wifey without bothering her with the yelling from sportscasters. Also the new Bluetooth protocol works seamlessly with my Yamaha AV receiver unlike my old QC 35, no additional tricks needed to connect headset to receiver.

This worked so well for a few months but now it does not want to turn on. One day at the gym it disconnected from my phone and just started playing like a blank noise and it took me a while to reconnect. It turned on fine the day after when I went for a walk then the day after that it did not want to turn on even though it was at 60%. I charged it all night and now it won't turn on at all.

Bought this for recent international flight. I loved how well they muted background sounds; Eg plane engines. Very comfortable. Tip: if u take them off and your grandkid wonders why there's no sound when he's playing Panda Bear games on your iPhone, need to disconnect your Bluetooth connection to Nose headphones to get sound back on phone games.

I Bought these for a 2 month trip to Europe mainly for the flight. On the plane the noise cancelling was 15 of 10 stars. They performed far beyond what I experienced with my Sony headphones. Battery life is impressive. I had them one before boarding the 9.5 hr plane and they played the entire flight. The level of comfort is also 15 out of 10. No ear sweat or pressure. Bose has out done themselves with the QC45.

I can now get a great nights sleep. I put ten hours of restful heavy rain on and sleep without interruptions. The Bose noise canceling 45 headphone are the best product that actually allow me uninterrupted sleep the whole night long. They are comfortable and sound great.

I bought this for a trip that I am taking soon. The headphones are not only very comfortable, but they also drown out the noise which will be good since I will be on a train for hours. Looking forward to my trip now with less noise, I should've gotten these sooner! I love the case that it comes in too!