Etymotic Research combined its noise-isolating earphone and noise-rejecting directional microphone technologies to produce the most technically advanced headset of its kind. The insert earphone optimizes sound quality and noise isolation, and the close-talking directional microphone allows you to speak softly for greater privacy....

The etyBlu earset contains two microphones. One is located internally at the end of the earpiece; the other, a noise-canceling mic, is located in the BLUmaxx boom. The combination of an in-ear noise-isolating earphone and a boom mic provides exceptional sound quality and clear communication at both ends of the conversation....