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ER4 XR - Extended Reference Earphones

No Reviews Yet Submit a Review UPC: 846430002029 Model Number: ER4XR Brand: Etymotic
ER4  XR - Extended Reference Earphones
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Product Description

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. ER4 earphones were the first high-fidelity, noise isolating in-ear earphones to use this technology in a consumer earphone, and are recognized as the world leader for response accuracy to which all other earphones are compared.

Product Features

  • ER4XR Extended Response Earpho

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