Etymotic ER3 SE/XR Noise-Isolating Earphones Model:ER3XR Extended Response The result is a remarkable

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Etymotic ER3 SE/XR Noise-Isolating Earphones Model:ER3XR Extended Response The result is a remarkableER3SE XR Earphones Quick Overview In ear Invented here: The ER3SE Studio Edition provides a high level of sensitivity, making it a perfect match for the portable media players on the market today. The ER3SE offers audio professional grade sound reproduction at an affordable price. The ER3XR Extended Response offers a modest bass boost, building on the sound quality of the ER3SE, while providing a slight bass boost for those listeners that prefer a