Etymotic ER3 SE/XR Noise-Isolating Earphones planar magnetic Intensive research and many years

Intensive research and many years of testing

6 mil conical bonded stylus

The HDJ-X5 headphones feature a new 40-mm driver with copper-clad aluminum wire (CCAW) voice coils

FXC – Frequency eXtension Chamber

TERMINALS Headphones: Stereo mini jack

Etymotic ER3 SE/XR Noise-Isolating Earphones planar magnetic Intensive research and many yearsER3SE 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