Fits iPod and iPhone earbuds (those included in the original Apple retail packaging). Simply snaps into place on your earbuds. Fits most BlackBerry® and other manufacturers' standard earbuds. Always keeps your earbuds available at shoulder height. One Year Limited Warranty
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...