Etymotic Research ER4S microPro Precision Matched Balanced Armature Driver In-Ear Earphones 689604125403 Bring to a boil

Bring to a boil

Save money on HVAC related energy costs with features like geofencing

These organizers have clean lines and are stackable

Works with Tap Water - No Chemicals or Cleaning Solutions Required

assembly and testing processes adhere to DOT and SAE automotive industry quality and safety standards

Etymotic Research ER4S microPro Precision Matched Balanced Armature Driver In-Ear Earphones 689604125403 Bring to a boilBrand Etymotic Research Model ER4S Color Black Size N A High performance balanced armature drivers are precision matched to within 1 dB Designed to compensate for the high frequency emphasis in recordings Popular with musicians recording engineers and audiophiles; can be used with a headphone amplifier if desired Braided cables for reduced microphonic effect Includes an assortment of eartips for a comfortable fit and carrying case True high fidelity