[This review was collected as part of a promotion.] I wish they were slightly more secure. (Had to retrieve a dropped ear bud from beneath a tight Amtrak trian seat last night), but the two biggest improvements which need to be made and that are foremost in my mind: waterproofing (I walk, ruck, and trailrun in the rain a lot) and comfort while sleeping. Improve these and it'll be a 5-star experience.

If you’re just using these headphones to listen to music, they work pretty well and are comfortable. For calls though, they are a disaster - the microphone is incredibly poor (I’ve been told I sound either like I’m underwater, or feet away from an airplane taking off), it does not isolate my voice vs. surrounding noise at all, and occasionally sounds scrambled. On my side, audio seems fairly decent during calls, albeit often rather quiet. If planning to use headphones for calls at all, I recommend looking elsewhere better options (my 3yr old Powerbeats Pro work infinitely better and are half the price).

The open earbuds design is sleek and the earbuds are extremely light, comfortable and you will not even know that you are wearing them. The sound quality is premium and you can move it a bit to find the right spot for best sound. You can select the automatic sound level settings and adjust the equalizer in the Bose Music App so that the sound has your desired tone and is automatically increased in noisy environment so that your listening experience remains the same. The battery life is pretty good, 19.5 hours of standby battery life in the charging case, about 7.5 hours of play time and about 4.5 hours with Immersive Audio.

[This review was collected as part of a promotion.] I finally bought the Bose Ultra Open Earbuds after a few months of thinking about it. I have small ears so earbuds that fit are really hard to find. I've been using them daily at work and at home. I've taken them on a 2-week trip in South America and they worked perfectly. I love them so much I bought a pair for my mom. They last a long time in between charges and they fit very comfortably (I sometimes forget I have them on). Also, I value the fact that I can still be aware of my surroundings when I use them. The only cons I found for me specifically are related to the fact that they can sometimes slide out if my ears at the gym and that they can heat up a little depending on the temperature (both ambient temperature and my own body temperature).

[This review was collected as part of a promotion.] These open ear buds are fantastic! I can listen to my podcasts or music, and I’m still able to hear what’s going on around me. Sound quality is so much better than I could have anticipated from open earbuds. Bose really knocked it out of the park on this one!

I bought these just about a month ago and I've been really happy with them so far. I mainly use them to listen to podcasts in my office while I work. I am going on a trip in a couple of weeks and am looking forward to seeing how they work on the loud airplane. I have other over the ear headphones and they haven't done so well on the plane but these have excellent sound so I'm feeling like they may work out.

[This review was collected as part of a promotion.] I had been looking for a quality pair of open ear buds for awhile now. I finally purchased these and was amazed so much so purchased and 2nd pair immediately after I misplaced my first pair on vacation. Best purchased I've made in years!!!!

[This review was collected as part of a promotion.] My fiancee gifted them 3 weeks ago. They fit well in my ears. I love the immersion feature. Found out only today that you can click the button on the ear to play/pause. Ive always used Bose headphones. This was a fun thing to try.

[This review was collected as part of a promotion.] pricy but the sound & comfort are worth it! boses sound is impeccable and the fact that they can put it an earpiece is a plus. Normally, I hate hate hate the headphones for iPhones. I just don’t use them. They’re uncomfortable but these I forget they’re on. The only problem is I’m so scared of losing them. It was a good purchase.

These earbuds are GREAT! They are so comfortable, I forget I’m wearing them when I don’t have music on. They stay on securely too! Great sound. Wonderful when you need to hear what’s going on around you. No one else can hear what you’re listening to. Easy controls too.