They work great. As for the people who said they broke ...
925055
They work great.

As for the people who said they broke the first time using them: then you were using them for something that you should not have? I find no issue with the tensile strength of them, granted you must accept they are thin for a purpose, and expect to treat them accordingly. I am using them to fine tuning edges on a solid custom Black Walnut center console for my Jeep.
494487
They work very well.  One of my friends bought a set after seeing mine.
3930294
I have had about 3 of these.  not because they break but because they work great and i get them for family and they love them and ask me to get them for their friends
1494174
They work great as far as I am concerned. I read a few reviews that suggested that they were not strong enough to hold up a normal car and that they cracked or failed so I parked my 2004 Jetta on them and left it there for over 24 hours.

Sure enough, 24 hours later, my car was still parked on them and they were holding well.

I only deducted 1 star because they should be a little higher and because plastic ramps aren't exactly confidence inspiring.
325998
They were working great. I like the idea of being able to change the tips to keep clean ones on them. The sound isolation was still good.
But like another reviewer has stated one of the internal wires broke and sound cuts out on one of the ear buds when the wire near the male jack moves around. I emailed the company to find out they only have a 3 month warranty.(((Update,I sent some in for warranty and the company sent new replacements))
I have many great very high quality noise canceling headphones. Like the
Panasonic RP-HC500 - Noise-Cancelling Stereo Headphones,which are incredible in all aspects of their use.
problem I run into lately is I can't use them in the place in which I work anymore. Shame cause they were as good or better than the high dollar Bose sets.
So I started hunting for in the ear noise isolating types. I tried all the expensive battery operated noise canceling type,3 different ones in all. Some did fair but none did great.
These Blockade brand cut out VERY Much noise. Only thing is you have to give them a chance while you learn how to actually get them put in. I know that sounds lame but you really do have to learn to pull back on you ear while putting them in. If you do they really cut out an amazing amount of noise.
I actually use these for about 9 or 10 hours a day.
Your ear canal will have to get use to having them in,and you will have to be determined to make them work out,(and they will)it took me 2 weeks of sticking with them for my ear canal to get use to the pressure of the plugs.
The push button volume control is a nice feature as well
Watch on Amazon and sometimes you can get them half price,I noticed the prices on these go up and down and I have bought them from different sellers and gotten some really cheap.($15.00 or so)
3015134
They do work great and are a good design. Just be careful when pulling from the very end. If you pull too hard the end could break off. I have been being a little more gentle and pulling not from the very tip and have been fine.
4503472
break very easily, but when they are working.. they are wonderful, and hilarious. also they come with generic batteries that only last about a week, gradually getting weaker as the days past( and in my case i only used it about once or twice a day)
3319542
There are a lot of comments from people who did not get original replacement parts. These came in iRobot packaging and work very well.
51031
When they work they work great.  1 of the 2 i ordered was broken, now the replacement cuts in and out, mostly out.
680848
They work well, when they work. They bend easily and when trying to fix it will shock you.
3080798
I bought these headphones because I was going off to college and wanted some over the ear ones to block out some of the sound. They worked great for the price. I could listen to music while doing my homework and it blocked a lot of sound. I had them for three years and it was just this past summer when they finally broke when the wire below the can got pulled out. Sennheisers are great but somewhat notorious for this happening. Ahh well, they still lasted for awhile and I would gladly purchase again.
613308
So I bought a pair and they broke immedietly. I was mad but they sent me new ones and they work fine. Could have been a bad pair as these work well.
118146
They work very well, just be very careful to check them and the door frame you anchor them to before each use as over time they will start to wear down and the door frame can get pulled loose from the amount of force. After about 6 months of use, my door frame pulled loose causing the bands to snap me in my back leaving a very large welt for a couple days. Hurt like nothing else, but technically that isn't their fault.
1510107
They are great, I have to say it, they don't fall, they sound great. But the only problem was that when I was using them, the black part that makes the earbud hold up to your ear broke so now, I can still use them but not like before right now I can barely move with them. I just use them at home, I like that it comes with a bag design for the earbud. The presentation in the box is nice
2443361
For being one of the first headsets for the ps4, they worked wonderfully for me. I got them when the ps4 launched and i am still using them. Unfortunately time has take  its toll and the plastic by the part that swivels the mic is cracked.
3091565
One of mine did break, but the company reached out to me and sent a new pair.
I'm more confident about this set, and will update over the product life.)

(Be careful about using these in snow / wet)
2588211
They're great as long as they work, but they seem to short out easily... I run a small carpentry shop / business so we are on the tools constantly but I have about a 60 % success rate with some of them working  for years and others that only lasted months then shorted out? I'd still buy them, as long as they do take back the one's that have stopped working