“ 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
The phone uses an internal configuration XE4/Pro four microdrivers with balanced armature technology and an integrated three-way crossover providing a listening experience like no other, with a super comfortable and crisp sound. Specifications: Sensitivity: 118 dB / mW Frequency Response: 10 Hz -17 kHz Impedance: 25 ohms Internal configuration of speakers: 4 microdrivers balanced...