Etymotic ER-4S MicroPro Reference User Reviews

Etymotic ER-4S MicroPro Reference

Part Number: ER-4S

Quick Specifications

  • Weight 1 oz
  • Sound Output Mode stereo
  • Additional Features noise isolating
  • Type headphones
  • Headphones Form Factor ear-bud
  • Connector Type mini-phone stereo 3.5 mm