Etymotic Research

Etymotic Research ER5-HF5 Balanced Armature Earphones (Cobalt)

$139.95
  • Etymotic Research ER5-HF5 Balanced Armature Earphones (Cobalt)

Etymotic Research

Etymotic Research ER5-HF5 Balanced Armature Earphones (Cobalt)

$139.95

No compromise, high-performance noise-isolating earphones that deliver best-in-class benefits and superior value, perfectly matched to the latest product innovations from most music players that support a 3.5-mm stereo phone plug.


Sound Accuracy



  • 85%+ response accuracy from 20 Hz – 15 kHz

  • Achieves highest output sensitivity in its class with 105 dB SPL sensitivity at 1 kHz at 0.1 mV

  • Accu•Driver™ high performance, precision matched, balanced armature drivers


Noise Isolation



  • 35 dB - 42 dB noise isolation

  • Documented highest noise isolation of any earphones or headphones on the market today


Style and Fit



  • Soft touch finish in black and cobalt

  • Assortment of noise-isolating eartips ensure proper seal and comfort

  • CUSTOM•FIT option available


Durability and Warranty



  • 2-year replacement warranty

  • Kevlar®-reinforced cable for durability

  • ACCU•Filter™ User-replaceable filters that protect the balanced armature drivers from ear wax


In the Box



  • hf5 earphones

  • Assortment of ACCU•Fit™ ear tips

  • ACCU•Filter™ wax filters with removal tool

  • Pouch