The JB9, a unique set of earbuds, is designed for enhanced audio performance, comfort, style and carrying convenience. Although designed with a sense of fun, the JB9 delivers serious high quality sound from its proprietary custom design and tooling. Enhanced acoustic chambers built into the earbuds improve overall sonic performance and increase bass response for overall clearer sound...
“ 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