Great quality, better then my Samsung stock headphones.
593863
Great sound and impressive bass. Definitely has a solid noise canceling attributes and doesn't come off when i go running.
I actually lost my first pair and bought a second pair because they were so good. didn't realize how bad my samsung stock headphones where until i went back to them after losing the SoundPEATS
3718541
Pros:
Great sound quality and even better with the bass boost feature. This is something the Motorola S10-HDs lacked which is the main reason why I returned them and bought these. Pairing was quick and hassle free I have these connected to both my iTouch and cell phone. Taking calls is just as easy as well as making calls since call button activates my phone's voice command option. Lastly, they are very mobile and flexible, you can practically store them anywhere. I found out the hard way with my S9-HDs that you can't do that because they'll bend.

Cons:
It's very awkward to wear these when you first put them on, especially if you are used to in-ear bud headphones. This isn't a big deal once you adjust and start wearing them regularly. Another problem I've noticed is they start to get uncomfortable after wearing them for a couple of hours. I think this is common for around the ear headphones although I never encountered this with my old S9-HDs. The last problem I noticed was the track forward and track backward buttons. They are poorly located and a hassle since you have to hold the volume buttons down to switch tracks. If this would bother you then I would suggest the 906 model.

Overall:
Awesome headphones for the price. I'm glad the S10-HDs I recently purchased didn't work otherwise I would be stuck with mediocre sound quality. I couldn't give 5 stars because they aren't perfect bluetooth headphones, but definitely a better buy compared to the motorola models.
2525183
The build quality is really good. They're heavy and clearly well made. The cord itself is thick and doesn't bend as much as typical headphones. They don't get tangled as much. Carrying case is a bonus for longer trips. The rubber portion of the earphones comes in many configurations and sizes too. Sound quality is very good.
559487
I shopped around considerably when looking to replace the stock earbuds included with my 60GB iPod video.  After reading numerous reviews I decided to go with the MDR-EX81LP.  I was unsure of how I would like the over-the-ear hanger, but I knew from experience with a Sony headset for my cell phone that the soft rubber earbuds would fit much more comfortably than the iPod's stock earbuds.

Overall, I'm very impressed by these headphones.  The soft rubber earbuds do a fantastic job of reducing surrounding noise and fit very comfortably into your ear.  The over-the-ear hanger adds an additional layer of protection, eliminating both the earbuds coming out of your ear and the rubber earbud covers subsequently coming off and getting lost.

Sound quality is excellent for this price range and far superior to the stock iPod earbuds.  Bass is enhanced nicely without becoming muddy or overwhelming.  Midrange and treble are improved over the stock earbuds.  Again, I'm not comparing these to a pair of Shure E4Cs here.  Overall sound quality is excellent for all but the most discriminating audiophile across a number of different music genres.

The only real negative I have has to do with the cord.  Rather than a simple "Y" style cord with the left and right cords the same length, Sony uses a longer cord on the right side, allowing you to put the left earbud in and run the right one around the back of your head.  Some may prefer this setup, but I'm not one of them.  Overall, a minor gripe for an otherwise quality set.

----UPDATE--- September 6, 2006
After having these for a few months I'm a little disappointed.  As noted in other reviews, the white casing has started to disintegrate in places along the cord, leaving 1/4 to 1/2" spots where the copper strands are completely exposed.  I don't think it will be long before the cord breaks at those points.  Also, replacement earbuds are hard to find - you can get them on the internet or eBay, but when you lose one, you don't generally want to wait to have new ones shipped.  I love the design and the sound, but the durability definitely leaves something to be desired.  Lowering my review from 4 starts to 3.
2502259
i was looking for good quality headphones. i was prepared to spend a lot, but i was a previous owner of creative products and remember the standard earphones my zen came with were actually really good quality. so i got these

base is really good. i didn't know in ear earphones can accomplish that. you don't have to worry about them not being loud enough becuase you can get the really loud, plus the noise isolation is wald good. you cant hear anything you don't want to while wearing these. plus the case it comes with helps them from getting damaged or tangled when idle
1815631
Great set of headphone! Two buttons to retract after using the ear pieces. Sound quality is great, I was very impressed. Pairing to Samsung phone and iPad was easy. Large button for connecting calls to phones. I did receive these at a discount or free for a honest review.
4122481
The tonal quality is very nice. Not exaggerated bass. These are the second set of the same buds. The first was a gift, fell apart early, and had no purchase info. But the audio and noise suppressing quality was so good, I bought another. I have documentation if these are faulty.
973375
These are excellent quality and are more suitable for my needs than the cheap ones found in my local Cell phone stores. These are well made and great sounding. The ear speakers are much better quality than most cheap ear pieces found in the stores. The mic picks up voice well, and the button controls the phone as it is supposed to for initiating and ending calls.
3160807
The headphones are high quality and sound very good. They also worked with my apple phone and my computer an not just for Samsung products. These headphones are no knockoff. They are the real deal at a very good price as well.
4030194
Love em, much better then the buds, at least for me and they have pretty good bass.
4750069
Great sound quality and build quality. I love the highs they put out.
2122660
I love these headphones, I don't use the bluetooth connection a ton, but the one time I did it only seemed ok, but I honestly like having the cord, I use these with my galaxy S7 alot and they are great, alot of bass, worth every penny for $30
1143567
High quality, things sound much better (noticeably so) in comparison to the cheap cable I have.
4769068
Very Nice, I really like these headphones. They are excellent at cancelling out noise, they look amazing, and the feature I like the most is that they included a case to put the headphones in once I'm done listening. This was a huge problem with my headphones taking damage in my pocket being smashed by my phone or tangled up with my keys but now that I have this simple case these headphones will most likely last more than year. The buttons work very well and after playing with the controls the pre-set on my Samsung Galaxy S5 was very easy to use. The only problem I had was having to unlock my phone to change the volume once, but I think that can be fixed through settings.
3443715
These r the best quality headphones i'v bought till now.. i mean i'b bought some large amount of crappy stuff, but these r jus out of this world.. amazing sound quality,, nice balance b/w the ears.. i mean 52$ in all. and the quality ,, its worth buying once in 2 years.. lol

Jus liked them too mch,,,
4893221
I recently purchased the Samsung original 3.5mm premium ear buds. I have a hard time finding ear buds that stay in my ears and these seem to stay in just fine. Also, the sound quality is really good, I could hear the person I was calling clearly and vise versa.  The volume control on the cord worked perfectly. I would compare these to the apple ear buds you get when you purchase the iPhone, but the price and sound quality alone is worth buying them.
131417
Great Headphones, I like the sound better then Beats. SMS is a good brand.