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...
Revolutionary bass and high-fashion colors combine to form a new fashion attitude. Deep Bass with unique Soft Silicon earbud naturally reduces outside noise and enables unparalleled bass levels that can actually be felt. Complete comfort is assured through unique shape soft silicon earphone cover.