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Etymotic Research HF3

Noise-isolating in-ear headphones with Apple® remote/mic

1 Review

Item # 255HF3BLK

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Product Highlights:

  • in-ear headphones with clear, accurate sound
  • single balanced armature ACCU-drivers for greater accuracy across a wide-frequency range
    • tuned for neutral sound
  • offer 35-42dB of noise attenuation
    • deep, earplug-style fit greatly reduces outside noise
  • 48" reinforced cable with 3.5mm miniplug
  • in-line remote and microphone for Apple® iPhone®, iPad®, and iPod®
  • includes three pairs of ACCU-Fit™ ear tips
    • 2 sizes of triple-flange silicone tips
    • 1 pair of foam tips
  • carrying case
  • User-replaceable filters to protect the drivers
  • wax removal tool included
  • frequency response: 20-15,000 Hz
  • sensitivity: 105 dB
  • impedance: 16 ohms
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • In-ear headphones with attached 48" cable and in-line 3-button remote/microphone (3.5mm plug)
  • 2 Pairs of 3-flange ear tips (1 pair installed)
  • 1 Pair of foam ear tips
  • Clothing clip
  • 2 Pairs of ACCU-Filter wax filters (1 pair installed)
  • Filter removal tool
  • Zippered storage pouch
  • User Manual
  • "Important" sheet

Good isolation. Convenient length of cord not too long nor too short. Pretty flat audio but I'm ok with that as I mostly wanted the isolation.

Shaddrick, Omaha, NE


Etymotic Research HF3 Reviews

Average Customer Review(s):

(1 Review)

Flat and Isolated

Shaddrick from Omaha, NE on 8/16/2018

Crutchfield Customer Review (What's this?)

Good isolation. Convenient length of cord not too long nor too short. Pretty flat audio but I'm ok with that as I mostly wanted the isolation.

Pros: Good isolation (with foam inserts)

Cons: Flat sounding kind of like studio monitors.


Hands-on research

Features and Specs

Noise-canceling No
Bluetooth No
Mic For Taking Calls Yes
iPhone Control Yes
Lightning Connector No
Android Control Limited
Frequency Response 20-15k Hz
Sensitivity 105 dB
Impedance 16 Ohms
Weight 0.4 ounces
Cord Length 48"
1/4-inch Adapter Included No
Volume Control Yes
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research


Overview: The Etymotic Research hf3 in-ear headphones offer excellent sound quality and noise isolation. The headphones come with a variety of ear tips for superb noise isolation, a clothing clip, wax filters, and a zippered storage pouch.

Balanced-Armature Drivers: The hf3 headset + earphones use high-performance, precision matched ACCU-Driver balanced-armature drivers to achieve a high 105 dB SPL sensitivity, and an 85% response accuracy from 20 Hz to 15 kHz.

Noise Isolation: The hf3s have a closed-back design and noise-isolating ear tips to achieve a 98% reduction (35dB to 42dB) in ambient noise. The 3-flange silicone ear tips work with most sizes of ear canals to ensure a comfortable fit and a proper seal. The foam ear tips are heat-sensitive and will expand inside your ear canals to perfectly form to the contours of your ear to block out ambient noise. The earphones also come with an option for custom-fit earpieces.

In-line Remote/Mic: The hf3 headphones have an attached 48" cable with an in-line 3-button remote control and microphone. The outer buttons control volume up and down, while the inner button controls music playback and phone calls). The remote control is fully compatible with Apple devices (iPhone, iPad, iPod touch), and partially compatible (playback/phone control but no volume control) with Android devices. The in-line remote includes a close-proximity, high sensitivity (-40 dB V/Pa) microphone for superior call quality. (The Etymotic hf5 is identical to the hf3, but lacks the microphone and in-line remote.)

ACCU-Filter: The Etymotic earphones are equipped with special ACCU-Filter wax filter to smooth the frequency response and prevent earwax from entering the earphones. The filters are placed at the end of the ear bud nozzle, and should be changed when they become clogged with ear wax. A filter removal tool is included in the package.


  • Frequency Response: 20Hz - 15kHz
  • Accuracy Score: 85%
  • Impedance: 16 Ω (at 1 kHz)
  • Sensitivity: 105 dB SPL (at 1 kHz / 0.1v)
  • Maximum Output: 120 dB
  • Noise Isolation: 35-42 dB
  • Ear Bud Dimensions: Diameter 0.277" Depth 1.165"
  • Weight: 0.4 ounces

Our Product Research Team

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Q & A

Customer Q&A

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Why did you buy this?

Amazon always cost more and shipping is not free don't get hooked on them [ Charles  May 03, 2018 ]