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More Product Information for the Etymotic Research ER4XR Extended Range In-Ear Monitor Earphones
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'); document.write('ER4XR Extended Response In-Ear Monitors

The World\'s Most Accurate Earphones Just Got Better! Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic\'s original design, developed for auditory research and hearing testing, used balanced-armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones. Why ER4XR Extended Response? ER4XR is the earphone for music lovers and hi-fi enthusiasts who want uncompromising accuracy in the mid-range and high frequencies, but appreciate a bit of extra presence in the lower end. The ER4XR incorporates the stringent channel matching standard used in the ER4SR and is built with precision machined, anodized and laser-etched aluminum bodies, and features user-replaceable detachable cables. The ER4XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement.

In The Box
  • ER4SR Studio Reference Earphones
  • Assorted eartips and 1/4" stereo phone adapter
  • Filter removal tool and replacement filters
  • Shirt Clip and Carrying Case
  • Performance Certificate
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Specifications

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General Information
ManufacturerEtymotic Research, Inc
Manufacturer Part NumberER4XR
Manufacturer Website Addresshttp://www.etymotic.com
Brand NameEtymotic
Product LineMicroPro
Product SeriesER4
Product ModelER4XR
Product NameER4XR Extended Range In-Ear Monitors
Product TypeEarphone
Technical Information
Connectivity TechnologyWired
Cable Length5 ft
Sound ModeStereo
Impedance45 Ohm
Minimum Frequency Response20 Hz
Maximum Frequency Response16 kHz
Connector PlatingGold Plated
Earpiece
Earpiece DesignEarbud
Earpiece TypeBinaural
Interfaces/Ports
Host InterfaceMini-phone (3.5mm)
Physical Characteristics
Form FactorIn-ear
Miscellaneous
Package Contents
  • ER4XR Extended Range In-Ear Monitors
  • Assorted eartips and 1/4" stereo phone adapter
  • Filter removal tool and replacement filters
  • Shirt Clip and Carrying Case
  • Performance Certificate
Warranty
Limited Warranty2 Year
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