Great headphones, but when say you're listening as a passenger in a car with the windows rolled down even with the noise cancel on you have an interruption that sounds like the speakers are going to blowout. Other then that they're great set of headphones.

I have had the same problem with every pair of bose i have bought. the head span is too large. its for people with big heads or long hair. it doesn't fight to your ear so the sound isn't as good as it could be. i have had to find ways to balance them with the various exercises i do at the gym and cardio.

QuietComfort 45 #1 quit working completely after day 1. I returned it to place of purchase and they said we would get a new one mailed to us shortly. I was hoping for a product exchange that day since this was a National merchant but they were out of inventory post Christmas. A week later QuietComfort #2 arrived and has worked fine. Other than the week delay in getting a Christmas gift, I'm pleased with service and performance of product.

I was expecting the quality to be good Bose products always are, BUT the amount of noise that was blocked out exceeded my expectations! My husbands band practices in our basement, and when I where these other than the vibrations from the basement I dont even know they are here! I would highly suggest these for anyone with sound sensitivity issues.

I got these over the skull candy crusher evo because I like the notice canceling in the gym and I like that you can adjust the noise balance but even with the bass all the way it is still super weak. Honestly I would get something else if you are in the market.

My husband gave them to me a couple of weeks ago. I wished they canceled out a little more sound but other than that was happy with them. Then this past week the microphone suddenly stopped working during phone calls. It only picks up my voice now if I am yelling.

Worked fine for about 1 week. After that other phone callers couldn't hear me properly or not at all. The BT range has shrunk to ridiculous 5m (eye contact with paired device). Software up to date. Reading online instructions for restoring factory settings right now so "you" cound't have picked a worse time to promt me with this feedback form. Hoping on that reset, otherwise returning the headset asap. But while they were functioning they were very good, even when connected to 2 devices. Couldn't ask for much more in that price range I guess.

I'm very much enjoying the product. It does everything I expected it to do. I have a number of Bose products… every one of them has done what they were supposed to do. Very happy. With the earbud's I shut down the world and get on with my day to I can focus on the day or the task at hand as I'm out and about on the road or on the job. When I can shut out the noise and focus on a audiobook, podcasts, training sessions and even some music. I wish my Bose could tell me not to pick up the phone, spoiling the joy they deliver

I love these headphones. They really cancel out any noise. Now don't get me wrong I'm not an audiophile or anything like that but for the most part these sound wonderful. I do have to say for the price there is one thing I'm not the happiest about, and that's the mic on my headset. I've had many people tell me they can't really hear me. That should not be an issue for a headphones that advertise clear mic sound on calls.

They are very comfortable on the ears. I have kinda long ears. This was a huge factor in my purchase. They have good noise cancelling for airplane trips. There is a suction feel for the noise cancelation when they are off, which was a first experience for me, it feels weird. but having sound on, it does not bother me. The sound quality.. I'm not sure how I feel. I was expecting more bass..? I am coming from earpods, so it is an adjustment. The app is somewhat limiting and iphone has changed their EQ settings to not even an option. But overall the sound is grade A-. It is not S-tier for me. You can see the L and R in dark lighting. You do have to remember to turn them off or they will die on their own. They are foldable but it scares me a bit that they might break. I treat these headphones very carefully.