“ I bought these SOL AMP in-ears at a local TJMaxx store for a reasonable price. The build quality is pretty good and the sound isolation is very good. The sound quality had some issues out of the box. Initially, I found the bass somewhat boomy and not very deep. The midrange sounded boxy. The highs were not as crisp as I like it. If you have ever heard a pair of very large cheap...” --bikdav
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...