Durable, good sound and volume quality
349009
Ok, so I've owned these earphones for about 6 months and they're fantastic. I've used them 90% for listening while working out and 10% phone calls. Phone call reception is good even with Sprint and people can hear me pretty clearly. I also own a pair of Koss Sporta Pro and while the sound quality doesn't compare, I find them just fine for working out. I rate them as durable because after 3 months of heavy use, heavy sweating, they stopped responding. I thought they were broken and I tossed them in the bottom of a bag, two months later, I found them, pulled them out, charged it and they're back to working excellently. So if you use them while sweating heavily, just make sure you dry them out well between uses.
2037580
It's nice to have wireless headphones. I can set my phone down and walk and talk in the house, or when I can listening to music when I'm exercising in the gym. These headphones stayed in my ear pretty well. The sound quality is also amazing when listening to music. My friends have no complaint when I talk to them using this headset, so the mic is also good.

One thing I like the most is, when I'm not using it, the ear buds are magnetic, so I can wear it like a necklace without losing them.  I have used this for more than 2 months now on a daily basis. They are still holding up nicely.

Disclaimer: I purchased this headset at a discounted rate, and the above is my honest and unbiased opinion.
2131113
sound is clear and the product is durable.  A little tight pinch when you put them in your ears.  They may loosen over time.
4257262
I bought these headphones back in 2006 for a steal and they are still holding strong almost 5 years later.  They come with a great durable travel/storage bag made of a thick vinyl, an adapter plug that unscrews to fit both the small and larger inputs.

I might not know a lot about impedance ratings, etc ... but I do know these headphones sound great, are durable and the swivel ear cup provides a good option for a DJ or just a regular listener like myself who needs to keep an ear open for other things like a telephone or whatever.  When the phones are on, they comfortably encompass the entire ear without being super clunky.  They have a cool, sleek look and have enough durability to travel over and over.

Great for everything from studio monitoring, listening to an MP3, etc.  I love these phones!
3638107
These are used daily and after 8 months they are still as good as new.  This is even with kids using them.  I find they are very durable and the sound comes out equal from each ear piece.
2299409
A great and durable portable speaker with decent battery life and volume. The additional 3.5mm port is a plus as well.
3003656
I like that these have volume control and they fold up nicely for travel. They seem durable as well.
1499514
I carry these in my bag every day and use them at my desk job to listen to podcasts and music.  The open design allows them to sound good enough without sealing up my head and blocking all outside sound.  After 3 years of use, the ear pads were still perfectly intact, but the connection at the plug has broken causing sound to cut out when the cord is wiggled. I am otherwise pleased with them, so I'm buying a new set.
1540547
I am pretty rough with my headphones and these ones have held up well. Sounds quality was better than expected. Downside is wind can find gaps and whistle but not a deal breaker.
3898352
Very durable headphones that have stood up to much use from my 8 and 10 yr olds.
2833393
I purchased a pair of these when they went on sale about a year ago and they have been great.  The sound quality is good and I really like having the volume control as well as the pause/answer button on the cord.  The button is compatible with my Motorola Droid and I would expect it to work with other Android phones as well.  The Zagg cord style is very convenient too with the ability to remove the earbuds from your ears but still have them hanging at your shoulders.  Mine have been very durable and I have even run them through the washer and dryer a few times on accident with no ill effects.  The buds include a variety of tips but I went ahead and purchased some comply foam tips to put on my Smart buds since I really like those tips.  They are a little pricey but go on sale quite often on Zagg's site and in fact currently there is a 50% off sale so you can get a pair for only $25, which is a great price for these earbuds.
1795084
This is a good, durable speaker. My toddler daughter uses it for music (she used to use an MP3 player but broke it) so we just play music from one of our devices on this and let her play with it. She's pretty tough on these devices and this is holding up very well.
4527852
Great sound quality and overall volume of sound. Plenty to be heard over an atv or side by side while on a cruise.  Feels durable.  Doesnt quite have the level of bass that I was expecting. Bass is a bit more shallow than other brands but for the price it still feels like great quality.
4306603
Good sound, durable, and offer reasonable noise-cancellation for the subway. And, unlike certain other overpriced lines of headphones, they aren't prime targets for thieves. Recommended.
3132357
Pros:
Sound quality is good
Louder than you would expect
Easy to connect
Bluetooth range is good (at least 20 to 30 feet without any problems, but that may also depend on your phone or whatever you are using)
Wired input works without battery use
FM Radio
MicroSD card for MP3 direct play (Tested with 32GB card)
Built-in mic for hands-free calling
Carry/Storage pouch included
Sound is balanced right to left (unlike most cheap Chinese earphones)
Durable enough for general use
Fit comfortably on your ears

Cons:
Mic quality is not real good. People have trouble hearing you.
Slight high pitched sound in the background when using Bluetooth
Controls are not that good. (you have to hold the slider to change volume, and it sometimes changes tracks if you aren't careful)
Track forward and reverse are buggy (you can only skip to the next track, or repeat the one you are on. No reverse that I could get working)
The buttons rattle a bit when you move, and can be heard while listening to music. (They should have put soft foam behind them to silence this)
Retail box was dusty enough to plant flowers on, so the stock must be old.

Battery Life:
So far I've listened to a total of 6 and a half hours over 3 days on one charge at about max volume over BT. The battery is still going strong. I think it's safe to say they should easily last 7-8 hours at moderate volume.

Durability:
The plastic is your average somewhat thin glossy cheap plastic, but they feel pretty solid for general use. I wouldn't try wrestling alligators with them, but they should last you if you aren't the kind of person that could break a bowling ball with a plastic spoon.

Overall:
I rate them as good for the price for listing to music. The sound quality is really pretty good compared to other cheap headphones, and they have the volume to drown out everything around you. They fit comfortably on your ears, and aren't too heavy. I wouldn't really use them for hands-free calling as the mic is not very good. I think most people would be happy with these for music, FM radio, and MP3 playback using MicroSD card. If you want something cheap for the kids, or for situations where you know they will get beat up; these are a great option.
3262361
After a string of headphones that sounded fine but broke easily, I got these about 4-5 years ago.  After a little break-in, the sound was great -- enough bass, but not overwhelming, and crystal clear on the higher end.  These headphones can pump out volume -- hooked up to a laptop you could practically use them as speakers.  The open-ear design isn't for everyone, but for me it was ideal -- I can walk through New York with the volume up, but still hear enough of my surroundings to be safe.

But, sadly, after 4-5 years of daily, rough use (often 10-12 hours a day, through all kinds of weather), I've finally managed to wear a hole through the cord, killing one of the speakers.  But it took YEARS of hard daily use to do it, so I'll gladly lay down another couple of bucks for another set.
3299753
I purchased these speakers a couple years ago for less money than they are currently sell for, but I still think they are a good value.  They do take up a bit of real estate on the desk, but they have very good sound quality.  They have held up well over the years too.  I never crank the volume too high, but they definitely produce more volume than I will ever need.