Single dynamic driver in-ear by Korean micro-speaker company called Dynamic Motion.
“-- Can the Dynamic Motion DM100 initial good looks be backed up by a good overall package? Let’s find out. ~ All photos were taken by me, no stock photos from the manufacture are used ~ *Accessories* - 4 Pairs of Silicon Ear Tips (XS, S, M, L) - 1 Pair of Medium Sized Comply Tips (T400) - 1 Cord Clip - 1 Airplane Adapter -...” --BloodyPenguin
“ http://www.head-fi.org/forum/thread/562428/review-kozee-infinity-x1-custom-molded-iem See above for my in depth review. This really is a good product. The issue is with the company itself. As I mention in the review, they are not returning emails from customers. And when people do manage to track them down on the phone - they make promises that are apparently not kept. I like Kozee...” --project86