Best in ear headphones I've tried for under $100, and they even surpass the quality of others I've tried over $100.
Good quality build, L shaped 3.5mm headphone jack, earbud tips stay on headphones. All in all, very impressed with the build of these headphones. Only problem with the build is that they are meant to wrap around the back of your neck with the left earbud having a shorter cable than the right earbud, this is, in my opinion pretty much useless and more of a hassle than a benefit, but it's really not that big of a deal.
In terms of sound quality, there really isn't much to complain about. They provide good, clear sound. They're very well adjusted for highs and lows, however unlike other headphones (Beats) they do not sacrifice the mids to achieve massive highs and lows.
Would very much recommend these headphones to anyone.