Good for cheap headphones
352072
These were alright. But, they didn't last very long.
2936505
Headphones work pretty good. A good cheap alternative to the beats headphones.  The audio cable that comes with it is garbage.  It immediately was scratchy when I plugged it in. You can use it but have to wiggle it to get both ears to work.  However the actual headphones are pretty good.
4078649
These sound quite good for a pair of $20 headphones, and I'll rate them as 4 stars given that they are inexpensive, fairly high fidelity, and work with Android devices (I'm sure the iOS version works fine with iPhones).

However, I found that there was a fair degree of cord noise, and, while these sealed well, I found the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Amazon-Premium-Headphones/dp/B00HX0SRXW/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Amazon Premium Headphones</a>, which cost less - sometimes half the cost - to sound almost as good while being far more comfortable to wear with far less cord noise (essentially none) and a high degree of resistance to tangling.

If you buy these - and I am generally a Sennheiser fan boy - you'll be happy enough, but I think you'd likely be be happier spending either a little more or, as with the Amazon headphones, a little less.
2335117
These are cheap headphones, and I mean money-wise. So don't purchase these thinking you are going to get audiophile grade headphones. But the mic works well, they sound good, they are surprisingly comfortable, and most importantly you don't have to sacrifice a pay check to buy them.
4551515
Fairly good budget headphones. Sound quality wise, it does it's job very well. when using with a phone, it is a bit guiet and distant sound, so be sure to get a amplifier dongle to boost the sound a bit (i use the boom stick). when using with a computer or laptop though it works perfectly fine audio wise. The construction leaves a bit to be desired. the entire thing is made of plastic, and is incredibly light. the extendable band is fairly flimsy and just falls down when not held in place. the cord is nice and is detachable, but the part that plus into the headphones is smaller than the average 3.5 mm jack, so be aware of that
4411265
For the price you pay this is decent, not great but not bad either.  The headphones are pretty cheap but the sound is again, decent.
2597247
The connection between the cable and my headphones isn't the greatest, as long as you are sitting down and aren't moving around the connection isn't bad. If your moving around and trying to do stuff with it then I suggest you look for another cable, but I'm just using it so I don't disturb my neighbors at night. If you are hooking them up to some high end headphones you are going to loose some quality. You can play around with the settings and it will make them sound better, but its not the same but for under 5 bucks its a good solution to my problems. The 25 feet of extra cord is nice I don't have to position myself so that I can keep my headphones plugged into my surround system and lay down on my couch. I didn't expect much from these, but they do enough to get the job done.
4786150
These are good headphones. I was looking for something inexpensive to stay in my ears while excrsizing and they work great. The sound quality is okay, they don't get very loud even with your phone or ipod on the highest volume. I wear them the play basketball and leave them in the car and they've held up nicely.
1455459
These won't be mistaken for high quality headphones, but they're good for the price. They've got good sound, but I'm a bit disappointed at the build quality, especially the thin leads. But, again, for the price not a bad deal.
3924838
Seeing as these were #1 (popularity) in headphones, I decided to give them a shot. They aren't the best headphones by any means but they are definitely great for the price. I personally find the bass to be mediocore and the lack of different sizes to be a minus but you get what you pay for.
4969185
The buds stay in my ears well, sound is decent for the price.  The cable feels cheap as well as the plug connection.  So far so good, but I don't anticipate these lasting long.  I go through a lot of headphones, hence I don't spend a lot.  There are better offerings to be found in this price range.
846054
A very nice pair of cheap headphones for people who want to integrate their phone and music player. It took a few days to get used to the feel, but definitely worth it.  I ride on a commuter bus every day and wanted to play my music without bothering other people while also blocking out external sound.  While the sound is not perfect, it is better than what you'll get on cheaper headphones and so far they seem durable.  Overall, a good product for the price.
3231744
Perfect cheaper headphones. They sound good and do the job. These are not high fidelity sound fantastic headphones. They are too small to achieve the same type of sound as over the ears "cup" type of headphones. But if you need a pair to easily tote around and will be in a somewhat quiet environment, then these are great. Just don't expect great noise isolating sound. They only sit on top of your ear, they are too small to surround it ....
1001441
I run, and lift weights a few times a week. My last pair of earhook type earbuds crapped out on me and I couldn't find them locally so I just needed cheap headphones quick. I paid $20 but that is still virtually nothing for headphones.

Pros:
Stayed in my ears very well. I had to use a combination because my ears are apparently different.
Perfect length cord (I'm 5,11 your mileage will vary.
90 degree cord.
Nice Sub bass and Passable treble.
For $15 I can say I have heard worse.

Cons:
When they say tuned for bass, they mean it has ridicules bass that bleeds heavily into the mids. The low sub bass is pretty good as well as the mid bass but it just bleeds into most of the midrange. It sounds good in electronic music and metal but for just about everything else they don't sound great.
I admit the driving bass did help me push myself extremely hard but unlike my last pair of running headphones I won't be taking these out and about because the sound is pretty bad.
3788716
Good headphones but you could finde better headphones
1007038
These headphones worked pretty well, especially for the price that you pay! They are definitely not Bose quality but they're still great headphones.
3962112
Definitely not Apple headphones, not even that close. But they are cheap. Haven't had them for too long so I can't say anything about the durability. If you're getting these for the sake of getting cheap headphones, then these will do it. If you want good quality, then you're gonna want to put more money into you're headphones.