After doing a lot of research, I elected to buy these because 1) they're wireless and 2) they're noise canceling. Being that they were BOSE, I elected not to get the Best Buy Warranty. I've known that BOSE provides great product support and warranty replacement for some time. What an epic mistake that was! For the first month or so, I was very pleased with the product. Then things started going down hill. The rubberized coating that covers the electronics started to get stretched out around the power button. Soon, the entire covering started coming apart at the seems. The coating on the other side started coming apart as well, so it seems they did not choose a good material for covering these. Eventually, it stretched out so much that I couldn't turn the power on/off. I was past the return date for Best Buy, so I checked with BOSE and they provide NO WARRANTY for any product that isn't purchased directly from them. So now I had a $300 paperweight! Ugh... Seeing I had no ability to return them and BOSE wasn't going to do anything about them, I figured I'd try and I was able to pull the rubber coating back far enough that I could reach the underlying power button, so for a few weeks, I used them in that capacity. Within a few weeks of that, I started hearing static and popping in the left speaker. Initially, it got better if I wiggled the cord, so I assume there was an issue with the wires or their connection. Eventually, wiggling the cord didn't work any longer, so they became completely unusable. I got to use these for approximately 2.5 months before they became completely unusable. I have since searched online and found a very long thread on the BOSE community web site where numerous people have reported this same issue as far back as 2017. BOSE is aware of the issue, yet they are still allowing this product to be sold. It should have been pulled off the shelves long ago. SMH... I won't be trusting the BOSE name anymore. I can't post a link to the BOSE community discussion around this issue, but if you search Google for "Rubber-Cover-on-QuietControl-30", you will find it.

Grabbed these back when they first dropped and true wireless was not as good then to go as an all day driver but when they messed up I took back and got some true wireless buds. At first the true wireless were good but if you wear all day it gets rather stressful on your ears but I love these cause the weight is not on your ears and they a plus cause you can just drop and the wire holds safe, no worries of dropping or losing. I wear all day at work which is great as they also work as ear muffs with noise cancellation, so knocks out one less item to add to work cart. Highly recommend these. There is a chance of the rubber body falling apart as my first set did but it worth the risk. Sound is amazing too with that Bose sound, tho I am a fan of the Master and Dynamic sounds these are a close enough soundstage to not miss them that much. Woulda been nice to have some haptic feature as sometimes I get calls but miss as I don’t hear my phone and buds are out of my ear. Still a great set which I do prefer.

The earbuds were very comfortable and fits very well in the war. The sound quality is great, the noise reduction is very good also. So far this is my favorite ear phone to date.

Great sound as you would expect from Bose. Serious problems staying paired with iPhone. Works well on one side of the body, terrible on the other. Same button -- and very similar action -- for turning on/off, pairing devices, and clearing "paired devices stored (supposed to pair up to 8 devices at once). At around 6-8 months, the outside shell (rubber/soft plastic??) began to separate around the neck body. I don't run anymore though I do walk. I wouldn't think sweat in those activities would be a factor in the body cover separating. IF that amount of activity and sweat creates a problem, that in itself is unacceptable for such a device at such a price. What, are we to buy a Bose QuietControl headphone device to sit around the house on the couch?? Deep basses and clear sound. But Sound volume is limited or has a governor on it it would seem.. Other than falling apart, weak connection with the iPhone, illogical action buttons, and now, difficulty plugging in the cord pins to recharge, it's a good device.

By far one of the best sounding headphones I've ever had. They fit and feel great and seals out the outside noise really well.The Bluetooth capabilities and battery life is ok but could be a lot better. For $300 a pair, these were not cheap but after two months of using it, it started to come unglued and the rubber material incasing it peeled off the unit. It still works but have to peel back the casing to activate any buttons needed to use it. It was two weeks past my 45 day hassle free return opportunity so I have to rely on Bose's one year warranty to fix or replace it if they'll honor it. Completely unsatisfactory for such a high price unit.