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...
Inspired by the sonic clarity and detail of our legendary electrostatic speakers, the Mikros™ 70 reference in-ear headphones deliver the realism, richness, and purity of sound that MartinLogan's discerning customers have come to expect. With superb ambient noise isolation, listening through the Mikros 70 is like having your own private MartinLogan listening room wherever you go.