They fit comfortably in one's ear. The sound is sharp and noise cancellation is awesome. They are very sensitive to light touch so you have to make sure you don't try to adjust them or light ly touch them while you are on a call. All in all they are wonderful and worth the investment.

Not so happy with this purchase. When I first opened it up, my first thought was, I love this color!. Then when I grabbed it out, it was light and flimsy, cheaply made. I have 5 different Bose earphone products. This by far is the worst. The noise cancelling isn't as good as my Apple earbuds. The quality of the buds are crap, you would think because it's light, that it'd be comfortable, but it isn't. I wore them for two hours and my ears hurt. The color is pretty. But the product wasn't what I expected out of Bose. Don't buy these if you have other noise cancelling earbuds.

Wore these brand new earbuds for a run. I made it 3miles before the left earbud stopped working and now either squeals a loud tone or just a thump but no sound before turning all the way off. I've now had these not work during runs, the QC version 2 stop working, and the ultra free open ear earbuds stop working from fitness. Bose is not durable enough to last their year warranty and they only replace items once with à refurbished pair that last typically about 100days. Very very disappointed Bose has turned to crap.

A valentines gift for my wife, These replace a 8 year old set of Bose ear buds .

Great sound as would be expected with a Bose product. Charging case feels a bit cheaper than I would expect. Most importantly, the Bluetooth connection keeps failing. The charging is good.

Some of the easiest plug and play earpieces Incredible sound Heard the base lines in a lot of tunes I had listened to in the past and missed Definite, add to any music lovers life

The connection between my phone and the quietconfort breaks away for a namo second every 15 to 20 songs. That never happened with my old bose earphones

Seems to disconnect randomly, if you take it out only one connects so you need the case again to connect. Weird noises sometimes too. I do not recommend.

Very happy with these earbuds they fit well and the noise cancelling works awesome . I would rate them as good if not better than the ultra earbuds Great price.

The sound is good. However, they do go out periodically even when my phone is right there; sometimes both, other times only one side. Also when you tap to pause, it pauses, but then moments later starts without me touching it. These are both inconsistent.