Not only are they extremely uncomfortable but they sound quality sucks. They do not block any sound from the outside, so on top of listening to poor quality music, you also have to hear everything around you...... Then on top of everything else you cannot get a refund because the item have been used...

Another gripe is that the cord seems to go out of its way to curl and tangle on itself, more so than normal cords. I expected a better fit and got a worse fit. I returned these for a refund.

I had hopes for these, however I am still looking. Good concept however reality is that the little gaurds come off in the middle of a run when sweat loosens the fit. trying to put them back in is when the top guards come off if you are not careful.

They have interchangeable pads to adjust to different size ears, but the actual speaker can't be made smaller. Sometimes I get a minor amount of discomfort [from one ear only] after wearing them an hour or so, but I still like them (I'm 27/male/5'7"). If you think you have petite ears they may not fit properly in the ear, and cause discomfort and/or poor sound quality.

This set has to be the worst ones I've ever used. They're uncomfortable, even after changing out the different size ear peices. The sound quality is horrible at moderate to high volume.

The bad news is that the right side is distorted after six months, making them useless to me, but I like them so much I am purchasing another pair.

get used to it, they will be that way forever. Very frustrating... too many good products to have this poor an implementation!

And for some reason, that I cannot figure out, the wire on one side is more than twice as long as the one on the other side. I don't recommend them to anyone that has a good ear for audio quality. The only reason that I give them 2 stars is because, despite everything else, they do seem to stay in my ear pretty well.

It is NOT the same product. I ordered it and found it to be cheaply built and did not sound anywhere near as good these 'phones. * The coating on the wire has cracked in a couple of places.

Jack: If your not careful when you pull out the jack, it may separate. This is the only fault I have with the Sennheiser that I did not cause, but it is relatively minor problem.

These earphones are great for what they are intended to be used for, working out. I would rate the sound quality as very good, not great, and not quite what I would expect for Sennheiser. That being said, I would still reccommend these to anyone looking for something that will stay put while working out, even while running.

I have purchased seven different headphones in the last year for my MP3 player. Every single pair falls out when I work out at the gym or is uncomfortable. I have been using these Sennheiser headphones for a month now daily and they have never fallen out.

The curl in the wire is only a problem if you don't re-wrap it and tie it up after use. I was using the clip to hold it after wrapping it up, but this clearly led to the wire shredding problem.

When buying this product, I had hoped that the various silicone pads would allow the unit fit in my ear easily...well no such luck. The sound is wonderful and the construction looks tough enough for outdoor hiking and biking. But if you have small ears - - look some where else.

The sound quality could be a little better. Whether or not this product is for you depends on what means most, moisture resistant, sound quality, or comfort. The fact that they are not perfect in two of the three is worth it to me, I have been looking for some that do not slide out of my ears, or become sweat logged once I'M really moving.

My one problem is that after sweating profusely, the sound in the left ear-bud seems to almost dull out completely. Until they come out with the "perfect ear bud", these seem to be the closest ones so far.

I bought these for the same reason as most of the other reviewers, I wanted them to wear while working out. For this purpose they work well.

It also has a headphone jack that is a sideways "L" shape, which is fine if you have a Creative Zen 4 GB MP3 Player (Black) but if you have an Apple iPod nano 2 GB Silver (2nd Generation) it doesn't work as well. But That isn't too big of a problem.

They have a few different stopper sizers for the buds, to try to fit in your ears, and one set seemed to work well for me. However, the wire casing started cracking in a few places after a few months of regular use, and finally, right at the plug. They lasted less than a year.

They work well once you figure out which piece works best for your ears. I would not recommend them for long distance runners though, after about 45min they started to hurt my ears.

Not only are they extremely uncomfortable but they sound quality sucks. They do not block any sound from the outside, so on top of listening to poor quality music, you also have to hear everything around you...... Then on top of everything else you cannot get a refund because the item have been used...

They have interchangeable pads to adjust to different size ears, but the actual speaker can't be made smaller. Sometimes I get a minor amount of discomfort [from one ear only] after wearing them an hour or so, but I still like them (I'm 27/male/5'7"). If you think you have petite ears they may not fit properly in the ear, and cause discomfort and/or poor sound quality.

This set has to be the worst ones I've ever used. They're uncomfortable, even after changing out the different size ear peices. The sound quality is horrible at moderate to high volume.

It is NOT the same product. I ordered it and found it to be cheaply built and did not sound anywhere near as good these 'phones. * The coating on the wire has cracked in a couple of places.

These earphones are great for what they are intended to be used for, working out. I would rate the sound quality as very good, not great, and not quite what I would expect for Sennheiser. That being said, I would still reccommend these to anyone looking for something that will stay put while working out, even while running.

When buying this product, I had hoped that the various silicone pads would allow the unit fit in my ear easily...well no such luck. The sound is wonderful and the construction looks tough enough for outdoor hiking and biking. But if you have small ears - - look some where else.

The sound quality could be a little better. Whether or not this product is for you depends on what means most, moisture resistant, sound quality, or comfort. The fact that they are not perfect in two of the three is worth it to me, I have been looking for some that do not slide out of my ears, or become sweat logged once I'M really moving.

My one problem is that after sweating profusely, the sound in the left ear-bud seems to almost dull out completely. Until they come out with the "perfect ear bud", these seem to be the closest ones so far.

I had bought an MP3 player and was not happy with the typical headphone that came with the unit. I first bout Skullcandy Smokin Buds, they had a good sound, wires of the headphone seamed a little cheap, the main reason for handing these down too one of my sons, was I use the MP3 player for the Gym during workouts and I could not get a good fit with the supplied three sizes of buds.

Even when I turn the volume to the max setting on my player I can barely hear the music. I expected a much better quality sound from a Sennheiser product, even a sports model. So, if you are looking for a snug fitting pair of earphones to wear while working out and are willing to sacrifice volume and sound quality then these are a good choice.

Another gripe is that the cord seems to go out of its way to curl and tangle on itself, more so than normal cords. I expected a better fit and got a worse fit. I returned these for a refund.

I had hopes for these, however I am still looking. Good concept however reality is that the little gaurds come off in the middle of a run when sweat loosens the fit. trying to put them back in is when the top guards come off if you are not careful.

They have interchangeable pads to adjust to different size ears, but the actual speaker can't be made smaller. Sometimes I get a minor amount of discomfort [from one ear only] after wearing them an hour or so, but I still like them (I'm 27/male/5'7"). If you think you have petite ears they may not fit properly in the ear, and cause discomfort and/or poor sound quality.

When buying this product, I had hoped that the various silicone pads would allow the unit fit in my ear easily...well no such luck. The sound is wonderful and the construction looks tough enough for outdoor hiking and biking. But if you have small ears - - look some where else.

They have a few different stopper sizers for the buds, to try to fit in your ears, and one set seemed to work well for me. However, the wire casing started cracking in a few places after a few months of regular use, and finally, right at the plug. They lasted less than a year.

I had bought an MP3 player and was not happy with the typical headphone that came with the unit. I first bout Skullcandy Smokin Buds, they had a good sound, wires of the headphone seamed a little cheap, the main reason for handing these down too one of my sons, was I use the MP3 player for the Gym during workouts and I could not get a good fit with the supplied three sizes of buds.

I bought these headphones thinking they might be nice since they stay in your ear. Well it turns out that if your ears are small they don't fit, you can twist until they get jammed in, but then you have a sore ear for 5 days.

First, the pieces come off easily, and are very easy to lose, and the ear buds are basically useless without the "Twist-to-fit" parts. Second, when the wind blows against these ear buds, you can't hear anything at all. Third, the ear bud's cord is about five feet long, and when it splits off into two sections, one is about six inches shorter than the other.

my only problem was the rubber pieces that your supposed to "twist to fit in" fall out very easily. sometimes when i take the headphones out of my pocket it has fallen off of the headphones and i find it in my pocket. they have extra ones but so far i have lost 3 of them.

Not for classical music, but better sound and fit than anything found in stores (including the $100 Sony earbuds that fall out like jumping beans). I think the only way they could make these better is if they were waterproof : )

They have interchangeable pads to adjust to different size ears, but the actual speaker can't be made smaller. Sometimes I get a minor amount of discomfort [from one ear only] after wearing them an hour or so, but I still like them (I'm 27/male/5'7"). If you think you have petite ears they may not fit properly in the ear, and cause discomfort and/or poor sound quality.

When buying this product, I had hoped that the various silicone pads would allow the unit fit in my ear easily...well no such luck. The sound is wonderful and the construction looks tough enough for outdoor hiking and biking. But if you have small ears - - look some where else.

The sound quality could be a little better. Whether or not this product is for you depends on what means most, moisture resistant, sound quality, or comfort. The fact that they are not perfect in two of the three is worth it to me, I have been looking for some that do not slide out of my ears, or become sweat logged once I'M really moving.

They have a few different stopper sizers for the buds, to try to fit in your ears, and one set seemed to work well for me. However, the wire casing started cracking in a few places after a few months of regular use, and finally, right at the plug. They lasted less than a year.

They work well once you figure out which piece works best for your ears. I would not recommend them for long distance runners though, after about 45min they started to hurt my ears.

If you have been looking for earbuds that do not slide around once your ears become sweaty during your workout, these are the ones. They are not the most comfortable, but they are not uncomfortable either.

I bought these headphones thinking they might be nice since they stay in your ear. Well it turns out that if your ears are small they don't fit, you can twist until they get jammed in, but then you have a sore ear for 5 days.

I've worn them for 3-hours runs in the rain without having to readjust-- They stay in place practically forever and do not make your ears sore at all. The larger rings that go around the speaker portion act as great shock absorbers (as they all do), and also keep rain/sweat from getting into the ear and speaker itself. The only reason I gave them 4 stars rather than 5 is because I've lost a few of the smaller rubber pads that rest in the upper part of your ear.

These are ok but too big for my ears so the sounds volume is pretty low.

Takes 5 minutes every day just to get the headphones into my ears and be on my way. When you unpack the headphones, they come curled up...

Another gripe is that the cord seems to go out of its way to curl and tangle on itself, more so than normal cords. I expected a better fit and got a worse fit. I returned these for a refund.

I am not sure this is due to the earphone design or the 10 cent clip that comes on the cord to keep it from moving around.

You would have tug on the cord or hit them pretty hard to make them fall out or misalign, which is essential for active listeners.

First, the pieces come off easily, and are very easy to lose, and the ear buds are basically useless without the "Twist-to-Fit" parts. Second, when the wind blows against these ear buds, you can't hear anything at all. Third, the ear bud's cord is about five feet long, and when it splits off into two sections, one is about six inches shorter than the other.

Comes with a lot of nice extras, including a good carrying case, cord clip and a variety of interchangeable pieces to customize the fit of the earphones. Small gripes: No matter the combination of adjustments I make, the earphones don't seem to fit my ears quite right, and over time they cause my ears to ache a bit. Who knows, maybe I have freakish ears.

product is light stays in your ear Excellent range of dynamic range / sound quality... the only problem is the the green cord / shield tends to shred after 3 months of daily heavy use...

Not only are they extremely uncomfortable but they sound quality sucks. They do not block any sound from the outside, so on top of listening to poor quality music, you also have to hear everything around you...... Then on top of everything else you cannot get a refund because the item have been used...

They have interchangeable pads to adjust to different size ears, but the actual speaker can't be made smaller. Sometimes I get a minor amount of discomfort [from one ear only] after wearing them an hour or so, but I still like them (I'm 27/male/5'7"). If you think you have petite ears they may not fit properly in the ear, and cause discomfort and/or poor sound quality.

This set has to be the worst ones I've ever used. They're uncomfortable, even after changing out the different size ear peices. The sound quality is horrible at moderate to high volume.

These earphones are great for what they are intended to be used for, working out. I would rate the sound quality as very good, not great, and not quite what I would expect for Sennheiser. That being said, I would still reccommend these to anyone looking for something that will stay put while working out, even while running.

The sound quality could be a little better. Whether or not this product is for you depends on what means most, moisture resistant, sound quality, or comfort. The fact that they are not perfect in two of the three is worth it to me, I have been looking for some that do not slide out of my ears, or become sweat logged once I'M really moving.

Even when I turn the volume to the max setting on my player I can barely hear the music. I expected a much better quality sound from a Sennheiser product, even a sports model. So, if you are looking for a snug fitting pair of earphones to wear while working out and are willing to sacrifice volume and sound quality then these are a good choice.

Keep in mind that no plug-stlye headphone is ever going to give you booming bass like cup-style headphones, but these perform well enough considering their size. Besides, when exercising your thoughts probably aren't focused on sound quality details (or at least they shouldn't be!)

product is light stays in your ear Excellent range of dynamic range / sound quality... the only problem is the the green cord / shield tends to shred after 3 months of daily heavy use...

And for some reason, that I cannot figure out, the wire on one side is more than twice as long as the one on the other side. I don't recommend them to anyone that has a good ear for audio quality. The only reason that I give them 2 stars is because, despite everything else, they do seem to stay in my ear pretty well.

It is NOT the same product. I ordered it and found it to be cheaply built and did not sound anywhere near as good these 'phones. * The coating on the wire has cracked in a couple of places.

The curl in the wire is only a problem if you don't re-wrap it and tie it up after use. I was using the clip to hold it after wrapping it up, but this clearly led to the wire shredding problem.

They have a few different stopper sizers for the buds, to try to fit in your ears, and one set seemed to work well for me. However, the wire casing started cracking in a few places after a few months of regular use, and finally, right at the plug. They lasted less than a year.

wire: I like the uneven length of the wire - instead of having to deal with a two wires bouncing into my face while running, I can rig it using the assymetric clip so that there are no wires in my face.

Also the kinks in the wire dont bother at all. They help keep the wire at a manageable length.

The only thing that is a little odd is one earbud has a considerable shorter wire than the other, but does not seam to hurt anything and the green color is just a little over powering. The sound and fit out ways any negatives for these headphones. I would recommend these to any active wearer of headphones.

Not only are they extremely uncomfortable but they sound quality sucks. They do not block any sound from the outside, so on top of listening to poor quality music, you also have to hear everything around you...... Then on top of everything else you cannot get a refund because the item have been used...

Even when I turn the volume to the max setting on my player I can barely hear the music. I expected a much better quality sound from a Sennheiser product, even a sports model. So, if you are looking for a snug fitting pair of earphones to wear while working out and are willing to sacrifice volume and sound quality then these are a good choice.

I can be working on a machine in the gym outside of a thumping aerobics class and still enjoy my music with minimal (or no) outside noise. Works pretty well on a plane as well. I've not tried noise cancelling 'phones, but these are a bargain in comparison.

Not for classical music, but better sound and fit than anything found in stores (including the $100 Sony earbuds that fall out like jumping beans). I think the only way they could make these better is if they were waterproof : )

And for some reason, that I cannot figure out, the wire on one side is more than twice as long as the one on the other side. I don't recommend them to anyone that has a good ear for audio quality. The only reason that I give them 2 stars is because, despite everything else, they do seem to stay in my ear pretty well.

They work well once you figure out which piece works best for your ears. I would not recommend them for long distance runners though, after about 45min they started to hurt my ears.

First, the pieces come off easily, and are very easy to lose, and the ear buds are basically useless without the "Twist-to-Fit" parts. Second, when the wind blows against these ear buds, you can't hear anything at all. Third, the ear bud's cord is about five feet long, and when it splits off into two sections, one is about six inches shorter than the other.

I bought these after trying many different earbuds for running. I like these mostly because they stay put during my long runs, but they sound good too. The sound reminds me of good stereo speakers, flat without excessive emphasis on any frequency range.