The newest addition to Etymotic’s Isolator earphone series, the MK5 combines the company’s renowned sound quality with excellent noise isolation. These IEMs are well suited for traveling, commuting, or working out at the gym, blocking out surrounding noise so you can enjoy your music. Plus, their noise isolation helps reduce the natural impulse to turn the volume to unsafe levels, protecting your ears in the long run. The compact, low-profile housing fits comfortably under helmets, and the 6-millimeter drivers use Etymotic's Accu-Chamber technology, described further in the video below.