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4 Core 1.7mm Litz HiFi-OFC Earphone Braided Cable For Etymotic ER4SR ER4XR ER3XR ER3SE ER2XR ER2SE LN008099 - AliExpress
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Amazon.com: gotor Replacement Cable for Etymotic ER4XR ER4SR ER3XR ER3SE ER3 SE/XR 7N Silver Plated Copper 24K Gold Plate Plug 1.2m(3.9feet) : Electronics
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