Etymotic Research ER23-HF2-AN - $149.00

 Etymotic HF2 High Performance In Ear Earphones with Android Remote/Mic
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Etymotic Research - ER23-HF2-AN

Etymotic HF2 High Performance In Ear Earphones with Android Remote/Mic

Item# ER23-HF2-AN
Price: $149.00

Availability: In Stock
Average Review: 4 / 5 Stars Click here to read all reviews!

  • Product Details
  • Manufacturer Info
 Product Specifications
Connector Type:
1/8" (3.5mm)
Frequency Range:
20 Hz to 15 kHz
Headphone Fit:
In Ear
Headphone Type:
Android Controls, Audiophile, Sound Isolating
16 ohms
Etymotic Research
Usually Ships Within:
Same Day
All Black, Black
2 Year
Product Line:

The world's most accurate sound-isolating earphones under $150!


A no compromise, high-performance noise-isolating headset + earphones that delivers best-in-class benefits and superior value, perfectly matched to the latest product innovations from Android smartphones that support a 3.5mm/4-conductor stereo phone plug.

ACCU-Driver Technology

  • High performance, balanced armature drivers specified for a response accuracy of 85% or better

Best sound accuracy

  • 85%+ response accuracy from 20 Hz - 15 kHz
  • Achieves highest output sensitivity in its class with 105 dB SPL sensitivity at 1 kHz at 0.1 mV
  • Accu-Driver high performance, precision matched, balanced armature drivers

Best noise isolation

  • 35 dB - 42 dB of noise isolation
  • Documented highest noise isolation of any earphones or headphones on the market today

Best style and fit

  • Soft touch finish in 3 color options: Black, Ruby and Cobalt
  • An assortment of noise-isolating ACCU-Fit eartip options to ensure proper seal and comfort
  • CUSTOM-FIT option available

Best durability and warranty

  • 2-year replacement warranty
  • Kevlar-reinforced cable for durability
  • ACCU-Filter User-replaceable filters that protect the moving coil driver from ear wax

Best communication and control

  • Close-proximity high sensitivity microphone
  • Works with Android devices and other smartphones


Frequency Response 20 Hz - 15 kHz
Accuracy Score 85%
Transducers Balanced Armature
Noise Isolation 35-42 dB
Impedance (@1 kHz) - 16 Ohms
Sensitivity (@1 kHz) SPL at 0.1V - 105 dB
Maximum Output (SPL) - 120 dB
Cable 4 ft with 3.5 mm plug
User Replaceable ACCU-Filters Yes
Warranty 2 years

Etymotic earphones deliver quality sound through a straight forward visual design that delivers. Armed with over one hundred patents, the audio engineers at Etymotics have continue to design and redesign until perfect tonal balance has been reached. Utilized by audiologists, musicians, and audio engineers for auditioning sound in different environments speaks to the level of professional quality sound that an amateur consumer should expect from Etymotic earphones.

Customer Reviews

Pretty good10/8/2012
I like the etymotic compact design, but the earpieces are hassle to get in the ear. If you look on youtube you’ll find numerous videos explaining the best way to insert these into your ear and to be honest its just not something I like doing. The sound is very good tho.

Nice earphones9/17/2012
I like the fit of these earphones. I use them on plane. THey block out noise very good. The sound of movies and music is good too.

Amazing noise cancellation.
Sound is great!!!
Other Thoughts:
I bought these about 3 weeks ago and I had never heard of Etymotic. I saw a review on line which said these were good in their price. The reviewer mentioned they bought it and that the experience was good, so I bought it there too.

When I called, it was very easy to reach a person immediately. The salesman was friendly and non-pressuring. He told me that Etymotic was one of the leaders of in ear design and explained how the earphones produce such a big sound in such a small enclosure. It was really interesting to learn and it gave me the confidence to buy from them.

THe sound of the earphones is way better than what Im used to. I love these!!!

Thank you for making this purchase such a great experience.

No its not a misprint you’re reading...6/29/2012
My name is really Ruby. And I bought the Ettymotic HF2 in ruby. My friend said that Apple ear buds were bad. I never used anything else. I’m glad she kept nagging me to upgrade. These are way better. did you know earbuds can block out sound? I didn’t. i swear i cant hear anything when I wear these. Woohoo! :D

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