Etymotic Research HF5 Portable In-Ear Earphones

  • AccuDriver(TM) high performance, precision matched, balanced armature drivers. ACCUFilter(TM) User-replaceable filters that protect the balanced armature drivers. Kevlar®-reinforced cable for durability
  • Includes an assortment of noise-isolating ACCUFit eartip options to ensure proper seal and comfort
  • CUSTOMFIT option available
  • Documented highest noise isolation of any earphones or headphones on the market today. 35 dB - 42 dB noise isolation
  • 3.5-mm stereo phone plug