Etymotic Headphones ER 4SR



The new ER4SR™ Studio Reference earphone from Etymotic Research

Availability: In stock (8)

The ER4SR Studio Reference earphone improves the accuracy of the previous ER-4S model, while providing a significant improvement in sensitivity, making it more compatible with the portable media players on the market today. The ER4SR offers audio professionals and those wanting the ultimate in sound accuracy a new level of performance.