They worked correctly, but hurt my ears to use.
933314
These hurt my ears, but they functioned correctly. I ended up promptly just buying a different pair because these hurt to have in my ears for even 5-10 mins. However, they did work, and I guess, for the right person, they could work on the fit - just not me.
2157141
They hurt my ears bigtime.  My ears are normal adult size but they didn't fit well at all.  I'm super bummed.  If you have smaller than average ears, you should definitely invest in these.  The headphones sounded great, however, and I wish they weren't so uncomfortable.  Literally could only wear them for maybe 1/2 hour before I had to take them off.  Ended up returning them :\
2055348
They were OK.  They seem to connect well to my Apple Watch and the batteries lasted a whole week with one hour workouts per day. But I had to return them because I could not get them to fit my ear properly. There were multiple inserts in multiple J hooks, but for some reason I couldn't get them to stay in very securely and I couldn't get them to couple with my ear, Which in turn they wouldn't produce any bass.
3110041
So I'm a techie and these are ok. I had a problem with my ears being in pain after a few hours. I had to replace the cord twice already with these and they are made of plastic. Also I had to glue a piece back out that kept coming off. They spend a lot of money on how good they look rather then how great they feel and sound. It's all bass in my ears, to bad you can't tweak with the adjustments. Other then that, they are ok but I say spend your money for something better.
3605154
Initially I gave these headphones 4 stars because the sound for the price was impressive, however, after about a few hours of use I had a serious headache from using them. They are basically unusable for me now. I've messed with the fitting several times and it still is uncomfortable. It's too bad.
4195563
They work without any problems, but they hurt my ears a little bit. They are okay for talking on the phone for an hour but I would not use these for hours of listening to music. Maybe my ears are just too small...
1706594
These were beautiful for my wedding, but my ears hurt like crazy by the end of the night!
1201818
I have the HD 428 SC and I like them.  I needed a second pair for work that I wouldn't be too disappointed if someone walked off with them (this happened).  I figured these would be close to the fit of the HD 428, but maybe not as good of sound.  On trying them on they pinched my ears.  Sound was adequate.  I returned them because I knew 8+ hours of wear would hurt my ears.  Perhaps my ears stick out more than the average person.  Try them on first.
4663476
These earphones, which were advertised as not hurting the ears because they don't enter the ear canal, still hurt my ears, even though I have tried all the sizes of silicone tips provided. They just hurt the outer part of my ears where they rest, instead of the inner part, or ear canal. I don't understand why, since everyone has differently-shaped ears, these and other earbuds couldn't be supplied with a slightly fluid, mouldable type of tip which would adapt itself accurately to each ear. Now I am considerably lighter in the pocket, and still have sore ears after less than half an hour of wearing, and I am not happy.

The sound quality is acceptable for my purposes (AVE machine with music/voice background), but is not even close to that of my old BeyerDynamic DT-990 headphones (though maybe that is not a fair comparison; the DT-990's have me effectively sitting in the vocalist's lap, surrounded by the band, and are addictive with any music at all because of their sheer presence, astonishing clarity, balance, crispness and spatial placement).

The sound was very harsh in the mid/top and lacking in bass when I first got them, but I broke them in over 24 hrs (i.e. connected them to my iPod with some rhythmic, dynamic music cycling at just above comfortable listening volume) and left them for 24 hours, and pretty much all the harshness has gone and the bass, which was weak, has improved significantly. All in all, I wish I had gone for another in-ear product, as these ones still try to fall out of my ears to some extent (though the lanyard is well-designed and the clip helpful), do not transmit sufficient bass or optimum sound unless I hold them to my ears with a little pressure from my fingertips, and with normal wear and the smallest size tips they still hurt my ears, though not as much as in-ear phones do. YMMV.

(N.B. I have a neurological condition which makes me more sensitive than usual to pain, but not dramatically so. Nevertheless, as I seem to be the only one complaining about sore ears here, readers might wish to bear that in mind; they are certainly a lot less painful than the only other earbuds I've tried -- the standard Apple ones.)
408734
My ears are small so they were a bit large and made my ears hurt sound was still good though.
2264339
They were okay for a while, then they caused my ear to hurt because of pressure from the design, and they also broke after about three months. I would not get them again.
4401339
Sound is good, quality cable, but these things tend to squeeze too hard & make my jaw hurt where the cups make contact with my head. Uncomfortable for anything more than the briefest use.
30940
The sound quality is very high for the price.  Unfortunately they hurt my ears after about 10 minutes of use so I bought a different pair and let these sit in my car as a backup.
3872068
They helped the earbuds stay in my ears but left my ears sore after the first use (about an hour).
1325212
In order for me to hear the the person I was having a conversation with, I had to take the device off my head to hear them. They wear uncomfortable on my ears.
3518536
Sounded really good for a pair of $50 or so headphones, but I found them uncomfortable. They would cause my ears and head to start hurting.  Construction seemed very solid. I'm writing past tense, because I ended up giving them away to a nephew.
2706783
They seemed the same as the other colors, but they hurt my ears if I wear them for too long. I'll stick with the other colors from now on.