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

Intensive research and many years of testing

The custom beryllium copper MMCX connectors are a huge step-up for our MMCX connectors giving them 100x the rated pull life of a standard MMCX connector

Patented planar magnetic transducer design utilizing our very thin

circumaural Sensitivity 96 dB SPL/mW Maximum Input Power 1000 mW Frequency Range 10 Hz – 30 kHz Weight 0

FXC – Frequency eXtension Chamber

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