Can't find a headphone that'll fit through the opening in ...
589509
Can't find a headphone that'll fit through the opening in this case.  Found out too late and couldn't return.
985819
Cute case and nice, slim profile. But you can't plug headphones into the headphone jack.
4282694
These headphones are nice, but the only issue I have is I have yet to find a case for this model and style headphone.
787771
Headphones do NOT stay in your ears :( They keep slipping out and don't fit properly in the ears
2704874
Dear Sony:

PLEASE continue to make earphones that are this shape. The newer shapes either hurt my ears (the Apple ones are torture) or won't stay in! This is the only brand I've been able to find that is still in this shape...
4086959
nice quality, but beware that this cannot plug directly into your earphones- I happened to have an adapter so it worked, otherwise I would have to return it
4432288
So loose that they keep falling out from my headphone. And now I don't even know where to find them.
2222398
The ear pieces aren't standard round in-ear pieces. They are a bit offset which I find do not stay in my ear as well as the standard round inserts of the previous headphones I got with my phone. They did not come with different size silicone ear pieces for fit so there's no way to try to make them fit better either. I wear headphones most of the day, so having them fall out often is kind of annoying.
They do sound decent and have the pause/hangup and volume on the right ear cord. I ended up ordering a few sets of the regular round in-ear headphones and threw these in the glove compartment for when I forget my headphones. Better than nothing.
85201
I am a headphone user and I don't want to share my music with others, because how can you? You can't bend the headphones in order for the others to hear what you are listening to. That is tantamount to breaking your own stuff. Good thing Belkin made something like this. It has two lines on the head of the 3.5 mm jack, which translates to getting in deep with the player". HAVING JUST ONE CAN NOT ACCOMMODATE IPODS.
4026847
The case fits great, and looks OK.  The material at the top and bottom of the phone are thick, which is good, except for one flaw.  It prevents my headphones from plugging in all the way.  This might not be an issue for all headphones.  The hole for the jack is about 1/4" so this may not be an issue for you if your earphone connector will fit inside that.
***Edit- this was written by my husband (his phone/case) I thought taking 2 stars for his headphones not quite fitting was a bit harsh, he agreed and added one back. The seller very kindly commented & said they'd make it right if he contacted them. It wasn't even a big enough problem for him to worry about that, & he's since found a pair that does fit. It's been 4 months and the case and phone have survived his daily, rough He-Man handling. No scratches and it still looks great.
4242279
The headphone audio jack is too mall therefore even a straight pin did not go through. Now I have to buy an adopter which should have come with the case.
3237542
So i've got these sennheiser HD 515s, they're great headphones except they have a cord leading to a 1/4 jack. There was an adapter that i could plug to make it 1/8, but it snapped in half, not to mention it ruined every jack I would normally plug it into. another cheap adapter i bought shorted itself out for no reason. If I bumped it the wrong way it bends the inside of the female jack wierd and cuts off the signal. With the low profile jack hooked up to a wire that's in between the 1/4 incher and the male 1/8 incher, that is no longer an issue. The 1/4 inch jack is tank tough and i can run over it with my corrola... not that i've tried. Look, it may be pricy for an adapter, but under good care, it could last you at least six months. I'd reccomend the purchase.
3849651
The sound quality on the headset is exactly what I would expect from Bose - excellent.  However, and I seem to be the only person with this problem, I cannot get the darn thing to stay in my ear.  I have tried each of the 3 sizes of ear thingys and am just having no luck.  I've even watched every youtube video I can find on this headset to see if I could figure something out but no luck.  If I use the mid-size without the headset attached it sits in my ear very well but when I attach the headset and try it - it just falls out.  I have twisted it and turned it and pushed it and crammed it and if you have any suggestions - I'm open to them.
1622131
They say it universal - but it ain't. I was not able to use it for the headphones I have. Unfortunately - I need to buy a new pair now...
16177
Yep, if you want to plug a pair of earphones in, you have to pry the cover off.  They won't insert completely because the faulty design prevents it.  She's not happy.
1888974
Only issue is the size of the headphone hole, we tried several that did not fit, thus we had to enlarge the hole, still had problem  accepting some  headphone 3.5mm connectors
1660802
The look and material are great but unfortunately the hole at the top of the case for the headphone jack is too small and certain headphones won't reach the connector (i.e. Bose in-ear headphones). I had to take the case off every time I want to use my headphones.