Conclusion: The NE-700X does not include a microphone although Nuforce offers a companion product that does include a microphone in the NE-700M . That product sells for US$75. I found the earphones to be comfortable to wear during the several hours I spent testing them. They stayed comfortably placed in my ears which is always a good thing. Following advice I found on the web site, I looped the cable around the ear (from front to back) while walking.
Pros: Well balanced earphones at a reasonable price.