“The sound in general is quite sparkling, open and well balanced for a single driver IEM. The first thing i notice is that the bass is a little flat and boring. It doesn't have that good punch, warmth or layered experience most high-end IEM's possess. Once the music evolves to more complex compositions it's losing it's composure and that's were you notice most these are $30...” --Xstream
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...