[This review was collected as part of a promotion.] As far as sound goes, they are great with extended highs, deep bass that reverberates, and a really wide-open depth-field. They no longer work, but that was probably because I wore them out. I didn't not purchase a new pair because I switched to the QuietComfort Noise Canceling Headphones in order to keep from having to put the earbuds in my ear canals.

[This review was collected as part of a promotion.] I have always loved Bose headphones and earbuds. I have not found a better sounding earbud. Also, the noise canceling feature is better than anything on the market. I've had Bose products for almost 10 years. I wish I would have discovered them sooner. Oh, also the ear buds are extremely comfortable!

[This review was collected as part of a promotion.] Excellent sound and noise cancelling at its best. BOSE has always provided top of the line noise cancelling sound in a variety of styles and these earbuds meets their high standards. I am a frequent flyer (+30 times per year) and could not imaging flying without these earbuds. While immersed in the noise cancelling mode the sound is of the highest quality and the plane noises do not get through. I have become so enamored with this product I've forgotten how loud planes can be.

[This review was collected as part of a promotion.] These are great. Very comfortable, great sound, intuitive, and with a competitive price. My wife has both the Bose open-ear for everyday around the house and noise-cancelling headphones for flying and loves them both. You just can't go wrong with any of them.

[This review was collected as part of a promotion.] Well I've had these now these ultra bud earbuds for at least maybe half a year I love them they are She almost pure natural sound I mean it it's In essence the best phone bugs I've ever had I even played my guitar Using these earbuds with the air with the other little adapter that you have for that I use on my guitar ramp love them love them love them Best I've ever had feel lost when if I if I lose them or misplaced them it's like I'm having a fit Thank you

[This review was collected as part of a promotion.] I've been a loyal fan of Bose and what they represent in both in quality and customer satisfaction. There was never a doubt in my mind in the type of product I would be receiving. The sound quality and comfort makes these earbuds a favorite of mine.

I really like these earbuds because they sound so nice and I love that they have good noise cancellation, and the battery life is genuinely insane. I've had these for 3 MONTHS and they've been sitting at 90-100% at all times. I actually never charge these earbuds for more than five minutes at a time and they've been full battery since I got them in February. This is SO AMAZING and I love this about these earbuds so much. They are just so finicky and very, VERY annoying at times. I'll be using both earbuds and one of them will randomly turn off and not reconnect until I put both back in the charging case. They'll disconnect for no reason and won't connect with my phone at all until I plug the case into a charger. Why so specific? I have no idea! But the funniest thing? This only stopped happening so frequently once I uninstalled the app! (Which is an entirely different app made only for this specific product, because the other app that supports the other headphones and earbuds apparently can't support these earbuds?) For whatever reason having the app on your phone makes the earbuds disconnect whenever they feel like it. Genuinely this is the weirdest thing I've experienced with technology. Sometimes I still have connection issues but since I've uninstalled the app it's only once in a while there's an issue compared to every single day. My biggest issue is the fact that you cannot turn of the sensors that detect when the earbuds in your ear, so if you happen to want to put one back it just turns your music off entirely and you have to manually reopen your app to turn it back on. Apparently a different model of the Quiet Comfort earbuds have a setting to toggle it off, these ones just don't. This is SO annoying that I genuinely want to return these headphones at times because of it. You can put tape over the sensors, I guess, but I shouldn't have to put ugly tape on my earbuds so they function the way I want them to. If there was a button to toggle the senors off in the app I'd be happy, but apparently that's too difficult? Please don't get me wrong I use these earbuds everyday because I genuinely do like them and I spent my money on them, but I wish I knew how frustrating they would be before I bought them because I might have looked for other options. TLDR: if you don't enjoy technology that is finicky and annoying to operate or you just get frustrated easily, DO NOT GET THESE! Don't do it, you will not enjoy them. If you can look past minor connection issues and don't mind not having access to the app (it makes the earbuds turn off and disconnect randomly) I would definitely recommend these earbuds! The battery life on mine is crazy and they sound amazing

[This review was collected as part of a promotion.] Great sound quality, excellent noise cancellation, and very comfortable to wear. The Bose QuietComfort Earbuds II fit securely, have strong bass, and block out noise impressively. Easy to use, solid battery life, and perfect for everyday use. Highly recommended.

[This review was collected as part of a promotion.] Awesome sounding buds. They have actually spoked me that I will only buy Bose products. The bass and treble balance are perfect. A must have for daily use. The quietness is amazing letting you listen to every note. No other product comes close to it for perfect quiet and comfort. 10 gold stars from my experience.

[This review was collected as part of a promotion.] I own Bose earbuds and headphones, and choosing them was one of the best decisions I've ever made. The sound is perfectly balanced—not too much bass—giving a clear and enjoyable music experience. The noise‑cancelling feature is excellent, it blocks out background noises completely so you can fully enjoy your music without distractions. Great design and color range as well. Already recommended to two friends of mine to get ones