[This review was collected as part of a promotion.] I absolutely loved the design and sound quality. However, unlike other earbuds that come with some form of adjustability these do not. As a result and since my ear loves are of different sizes I was only able to properly place them in one ear.

[This review was collected as part of a promotion.] Great Concert like sound almost unbelievable ! ...has similar effect of headphones over the ear. Can be a bit tricky putting on but very adjustable to get it just right. The more you use them, easier it gets. Great to use in environments where you need awareness of your surroundings like in gym, physical therapy, yard work with power equipment or walking on street.

I am disappointed with my new quiet comfort earbuds. I previously owed a set of QC 30 neckband earbuds that were awesome. Would have bought another set when mine quit working, but they are not available any more, so I settled for the QC earbuds. There was no clear owners manual with them so you have to spend a bit of time figuring them out. Once they were working, they are so touch sensitive that you have to be careful when touching them. They cut out when I get a message and don't automatically restart playing my music.They are hard to connect to a TV. The only thing I like about them is noise cancelling feature. I never had any of these issues with the neckband. I wish they were available again.

The top two best features of this product are the sound (amazing and unmatched with the immersive audio) and the comfort of the innovative open ear style. I've been using earbuds for years but have also tried bone-conducting, headset style, over the top of the ear style and regular full noise canceling earmuff styles. Earbuds are the most convenient for me, but they would tire out my ears after even 2 hours. For these open ear Bose buds, there are a few things that could be improved, especially based on the high price of these. 1) Wireless charging (I'd expect wireless charging on the case at this price point) 2) Volume (most of the time I have to be at full volume to hear, especially in a crowded or noisy location) 3) Multi-connectivity (it connects to multiple devices, but not at the same time) 4) No Mute button 5) No Alexa/Siri built in The battery life is terrific. I'll still keep these, because the open ear is so comfortable for many hours (5+) of wear. And they're stylish. For the pricepoint I would look for ALL of the items on my list, especially the wireless charging which is so weird that it isn't included. And why not include a clip or something so i don't constantly misplace the case! The multi point is important to me too when I'm switching back and forth on my computer to phone. In any case, this is my first Bose purchase, 4/5 stars. I'm happy to be a tester for any other future product!

[This review was collected as part of a promotion.] I have extremely small ears, and my “in ear” earbuds literally left open areas in my skin. I saw the Bose Ultra Open Earbuds and decided to give them a shot. They obviously eliminated the “In ear” pain and impaired skin integrity issues, and they stay comfortably in place with no problems. Sound quality is excellent; the controls/function takes a minute to get used to, but not difficult; battery life is exceptional, far exceeding any others that I've used so far. My only complaint and reason for giving only 4 stars is call quality, on both ends. Hard to hear, so much so, that at times I've had to switch back to my old earbuds for the call, just so the other person could hear me well enough to converse easily. If there is a way that they could push an update that would remedy this (if that's possible) they would be 5 stars for sure.

[This review was collected as part of a promotion.] I've never been a headphone/ ear buds person until now! The open ear buds are AMAZING! I forget I'm even wearing them. If you have never found ear buds that fit comfortably these are it! Buy em now! I should have bought them sooner.

I highly recommend these earbuds. They are extra comfy to wear for extended periods. Normally I don't like 3d audio, but these buds have changed my mind on it. The open back vibe plus the optional headtracking makeshift feel like a speaker is in front of you. Battery life is good. Sound quality is good. Case is serviceable, nothing special but nothing bad either.

[This review was collected as part of a promotion.] Have had these buds for bout a month. For the most part, I like them for the comfort and sound is OK. The bass could be better, volume could be a bit higher, and the mic for the phone definitely needs some noise canceling. As a truck driver, I am unable to use the phone unless in a dead silence room, I can hear the other end but they can't hear me.

[This review was collected as part of a promotion.] Have had these ear buds for several months. They work great for my application. I had and still have the previous open air buds. Both are great, but the ability to quickly recharge in the case and the comfort are the exceptions for the newer version.

[This review was collected as part of a promotion.] I just recently purchased these headphones for a couple weeks now and I can honestly say that I really like them. With the new style of headphones that does it insert into your ear was odd at first but then I actually forgot I even had it on. It is quite comfortable to wear and does not easily fall out, especially when most earphones doesn't fit for me very well. The sound is actually quite good but you definitely can hear all the noises around you so that you are not completely tuned out to the things around you