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Etymotic Research ER-4 MicroPro Headphones / Silver

Released on 11 February 2010

Manufacturer: Etymotic

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The ER-4 MicroPro earphones are the next best thing to live music, with noise isolation far surpassing that of active noise-canceling earphones. The ER-4s require NO batteries, and can be plugged into any audio source. Their external noise exclusion -- 35 dB with 3-flange eartips, 42 dB with foam eartips -- allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels.
  • Key Features:
  • Transparent, reference-quality sound
  • For audiophiles, performing musicians and recording engineers
  • For mixing, monitoring and critical listening
  • Accurate real-ear response
  • ER-4 system includes Unsurpassed isolation from outside sound
  • Specifications:
  • ER4 MicroPro earphones
  • 5 ft. cord with 3.5 mm stereo phone plug
  • 1/4" stereo phone adapter plug
  • 4 triple-flange eartips (standard size)
  • 2 triple-flange eartips (small)
  • 4 foam eartips
  • 4 glider eartips
  • Filter changing tool
  • 4 replacement filters
  • Shirt clip
  • Pouch
  • Storage box

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