Search results for 'er 4 micropro earphones'

  • Etymotic Research ER•4 MicroPro unboxing

    Devin Balentina
    • 14537 views
    • 2007-04-12T20:32:39
    • 146
    Unboxing Etymotic's ER•4 MicroPro. www.gadgetnutz.com review of Etymotic's ER•4 MicroPro http://www.gadgetnutz.com/modules/news/article.php?storyid=00316
  • ER•4 microPro Earphones

    etyhead
    • 5342 views
    • 2016-01-15T20:26:17
    • 117
    Etymotic invented noise-isolating, in-ear earphones. Etymotic's original insert earphone design, developed for auditory research and medical diagnostics, used balanced armature rec ...