Replacement filters to protect earphone drivers
4 replacement filters and changing tool
Fits Etymotic Research ER4 and HF series earphones

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.28 inch
Height : 0.12 inch
Length : 4.02 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B009OWPDP2