Others say...

"Ear Jam review"
One of the best investments I've ever made for my iPods. These buds easily snap over the existing iPod earpieces, and they actually stay in, and most importantly, they do a very good job at sound quality. I have a set of Shure e110s, which cost many times more, and the bass level on them isn't nearly as good as the Ear Jams. Apparently, snapping the chamber over the existing iPod ear pieces really does make a difference! Well worth the money!

"Unfortunate that they do not fit my earbuds"
I think that these would be great, but they do not fit on the newer iPhone ear buds even though it is also considered an iPod...

The vendor refunded my money but of course made some on the shipping and handling.

So if you are looking for enhancement for you iPhone playback ... well, I guess you are going to have to wait...

"these things suck"
the standard apple earphones aren't that comfortable to me. i bought these in hope of making the apple earphones more comfortable, but all they do is muffle sound. oh, and they don't provide any additional comfort. in fact they just make the whole thing fit awkwardly. at this price i'm not too concerned though. perhaps i'll break down and buy some better earphones with an integrated mic.

so, if you want a crappier fit and muffled sound buy these now. otherwise stay away.

"sorry i bought these"
this is the first review i've ever written on amazon. I have taken time out of my busy day to proclaim my disgust for these stupid things. i am a bit of an earbud snob i must confess but i can't see how anyone can listen to a an mp3 player with the earbuds included with an ipod. i consider those to be garbage. these ear jam add-ons do improve the sound by jamming them into your ears but they are clumsy and don't stay in the ear canal. i love my Shure E2c earbuds and would gladly pay the $65 to replace them if i ever lost them. they are as important as my ipod to my listening experience.

"Get it if earbuds don't work for you"
My husband's ears are shaped in a way that regular earbuds just fall out. We've solved that problem for regular music listening with the er6i's which jam into his ears (and has great quality, sound isolation, etc), but he still has some earbuds that he needs to use.... for example, the set that came with his cell phone, and a motorcycle intercom that we bought. He just pops these on the buds, and is able to use them without any problem.

He's not too concerned about the sound quality in this case, but rather the adaptor quality.

The negatives. Sometimes they pop off the earbud when we're storing them (note, we've never used them with iPod earbuds, just the two mentioned above). Sometimes the grey part alone pops off, and that's all too easy to lose. I can't use them at all. My ears just aren't big enough, the result being that the back of the earphone pushes against my ear - really uncomfortable!

Anyway, my husband is happy with them.