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ER-4S Micropro Earphones (Stereo)



Product Description

The ER-4 MicroPro Earphones (Stereo) are high fidelity transducers developed specifically to combine flat frequency response with isolation from external noise. They deliver transparent, reference-quality sound and provide at least 20-25dB of external noise exclusion at all frequencies, which allows listeners to hear the full dynamic range of recorded or live music at safe levels.

These units  are designed to give the most accurate response with normal commercial recordings. Some users with low powered portable equipment prefer to use an external headphone amplifier.


  • Unparalleled sound accuracy
  • Virtual elimination of external background noise
  • Designed with a gradual roll off in the high frequencies
  • Has approximately 5dB less output at 10kHz than the ER-4B
  • Light-weight and portable
  • High-fidelity monitor earphones for REM

System Kit Includes

  • 5 ft cord with 3.5mm stereo phone plug
  • 1/4″ stereo phone adapter plug
  • 6 white flanged ear tips
  • 10 foam ear tips
  • Filter changing tool with 4 filters
  • Instruction booklet
  • Shirt clip
  • Carrying pouch
  • Storage box

Many of E.A.R.’s custom products come with a warranty for fit as well as repair and service. If you need to verify your warranty status, please call our office at 1-800.525.2690  or 1-303.447.2619  Monday – Friday 8:00 am – 4:30 pm MT.

You can also contact our Custom Service Department by filling out the Customer Service Request form.

Click on the button below and find your product’s warranty information. Please include your Invoice, Sales Receipt or Transaction Number.

If you are trying to reach us outside of our working hours, our Customer Service Department will return your inquiry during normal business hours of operation.

Warranty Information Page

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