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ER-4 Proffesional in-the-ear Earphones
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Etymotic Research ER-4 Proffesional in-the-ear Earphones

Condition: Brand new, USA Warranty

Next Best Thing to Live Music :

-Transparent, reference-quality sound

-For audiophiles, performing musicians and recording engineers

-For mixing, monitoring and critical listening

-Accurate real-ear response

-Unsurpassed isolation from outside sound

The ER-4P earphones were designed to match the response of the ear, creating nearly perfect sound reproduction. They reduce external sound naturally by sealing your ear canals, without the added weight, bulk, or external power supply required for active noise-canceling. Their external noise exclusion  lets you hear the full dynamic range of recordings without your having to play them at unnaturally high and unsafe levels.

Other in-ear earphone designs have tried to match the ER-4 MicroPro earphones, but not one is comparable to the high fidelity, reference-quality sound or the isolation of the ER-4. The word "Etymotic" means "true-to-the-ear," and ER-4 MicroPro earphones produce the highest sound quality of any earphone available.

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Etymotic Research ER-4 Proffesional in-the-ear Earphones

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