Honestly expected better from Bose. While the sound quality has slightly improved compared to the older QC20, the level of noise cancelling is greatly sub-par. Compared to its counterpart, the QC35, it doesn't have the ability to completely cancel out the noise of the engine while flying. The design is also slightly uncomfortable on the neck and leaves the earbuds dangling freely when not in use.

Biggest disappointment as I wanted to use them as a noise cancelling head set as well as hands free phone in the office. The microphone seems to be the same one that is in the earbuds used for the noise cancelling. The background noise makes this set useless for phone calls. Why not have a separate microphone on the cable volume control? At the price of these this it should be the minimum one should expect. Wasted money.

I've owned these earphones for about 9 months. The noise cancelling, sound quality and app are all great. The thing around the neck is terrible. It would be ok if I was only sitting, standing or walking, but I'm rather active. When I'm gardening, bending, reaching, washing the car, painting, doing maintenance around the house, the thing around the neck constantly slides and drags on the earphones. On a hot day it makes my neck sweat and is very uncomfortable. I love the idea of bluetooth so that I can be rid of annoying cords on earphones. I think these earphones were a horrid waste of money. I'm so sick of the neck thing that I'm returning to my old Bose noise cancelling earphones and their annoying cord.

Bought the piece for several months now and using it almost every day. Overall, it is over priced in terms of the quality of sound. the sound is only $100 level. i love it as the noise cancellation is adjustable. for qc35, the function makes me not feel comfortable but qc 30 solves the problem.

purchased last month from ebay bose store.... overall very good earphones. I'll prefer it over the QC35 for more portability purpose, but feel it's a little bit pricey though. it's also very useful for gymming or running purpose as i found the back support it has is quite useful when you are on move.

I don't like to wear over the ear headphones. I have a very small head and find them too bulky especially cuz I wear them nearly all day at work. These are great, they are so comfortable and the noise cancelling is awesome. Also I can adjust the noise canceling if I'm using it in situations where I need to outside noise. I use it a lot around the house for phone calls and I can go about doing other things whilst on a call. Excellent product as always with Bose

Blue tooth connection cuts out constantly if you are moving about like just walking for example with phone in pocket. So this renders them totally useless because they are wireless only.
Expected a lot more for an outlay of $ 435.00 !!!
VERY DISAPPOINTING purchase do not waste over four hundred bucks like me.

Bought one of these as soon as they became available at the local department store, and immediately contacted support as I noticed issues. Support got back telling me that they'd keep me posted. They got back to me 3 weeks later telling me they'd exchange my current one with an improved version coming out soon. Why isn't the exchange program been made public, and why did us the early adopters get sold a product with a design flaw in the first place?