Are you interested in earbuds or IEMs? If the former, check out this link on Head-Fi.org
http://www.head-fi.org/t/812853/absolute-best-budget-earbuds
Also, this one...
http://www.head-fi.org/t/783669/venture-electronics-ve-monk-monk-plus-a-5-earbud-that-taking-the-world-by-storm
You might be surprised at the kind of sound available for under $10.
http://www.head-fi.org/t/812853/absolute-best-budget-earbuds
Also, this one...
http://www.head-fi.org/t/783669/venture-electronics-ve-monk-monk-plus-a-5-earbud-that-taking-the-world-by-storm
You might be surprised at the kind of sound available for under $10.