Etymotic Research ER•4 MicroPro earphones provide the highest sound quality of any high-definition earphones on the market today. They feature high performance, balanced armature drivers that combine flat frequency response with passive noise isolation. In-ear design with ACCU•Fit™ eartips ensures a comfortable and secure fit, while the included assortment of eartips allows for customization to suit different ear shapes and sizes.
Etymotic Research ER•4 MicroPro earphones provide the highest sound quality of any high-definition earphones on the market today. They feature high performance, balanced armature drivers that combine flat frequency response with passive noise isolation. In-ear design with ACCU•Fit™ eartips ensures a comfortable and secure fit, while the included assortment of eartips allows for customization to suit different ear shapes and sizes.
Etymotic Research ER•4 MicroPro earphones provide the highest sound quality of any high-definition earphones on the market today. They feature high performance, balanced armature drivers that combine flat frequency response with passive noise isolation. In-ear design with ACCU•Fit™ eartips ensures a comfortable and secure fit, while the included assortment of eartips allows for customization to suit different ear shapes and sizes.
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