“This is a review and comparison of Ostry KC06 and KC06A in-ear headphones. http://www.ostry.com.cn/item/detailPage?itemid=28 and http://www.ostry.com.cn/item/detailPage?itemid=29 I get a chance to review and to compare a lot of different headphones some of which represent an amazing value with an OK sound while others have a great sound with a price tag that makes you question...” --twister6
First custom earphone in the world with a single 14mm dynamic driver couples with advanced frequency suppression technology (FST). Frequency Response: 10-20000 Hz Impedance：16ohms（including cable） Sensitivity (at 1kHz)：116dB spl (1mW) Important: Due to the size of the driver, people with small ears may not be able to fit. We would need your ear impressions to check for sizes...