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...
Now you can enjoy your music anywhere you go. Simply, plug it into your MP3 Player and secure the headset comfortably in place. Our new, designed headset is created with a special style to suit your taste and usage.