Etymotic Research, Inc. is an engineering-driven research, development and manufacturing company. The name “Etymotic” (pronounced “et-im-oh-tik.”) means “true to the ear.” Mead Killion, Ph.D. founded Etymotic Research in 1983 to design products that accurately assess hearing, improve the lives of those with hearing loss, protect hearing, and enhance the listening experience of musicians and music lovers everywhere.

With deep roots in acoustic research and the hearing aid industry, Etymotic invented insert earphones in 1984. Etymotic’s original earphone design used balanced armature receivers, which established these speakers as the gold standard for high definition in-ear earphones. The first versions were used for diagnostic testing and precision auditory research (ER-1, 2, 3). Etymotic produced the first noise-isolating high-fidelity in-ear earphone, the ER-4 (1991), which became the basis of all subsequent in-ear earphones and in-ear monitors worldwide, and created an entire category of consumer electronics. The ER-4 earphones are still produced and channel-balanced to within 1 dB in Etymotic’s labs in the US.

Innovation, education and hearing conservation are central to Etymotic’s mission. Etymotic’s products are used by scientists, hearing practitioners, hearing-impaired consumers, professional and amateur musicians, and others who insist on superior sound quality. Audio engineers, audiologists and musicians working together have generated over 100 patents issued and pending. A number of Etymotic’s 60 employees are accomplished musicians. Etymotic Research is located in Elk Grove Village, Illinois.


Etymotic Research ER-20 ETY-Plugs Triple-Flange Earplugs
ER-20 Ety-Plugs – Highest fidelity ready-fit earplugs


MP 9-15 Music Pro Electronic Earplugs
MP 9-15 Music-Pro – Ideal for music educators, directors and performers

$519.00 $462.00

GSP-15 GunSportPro Electronic Earplugs
GSP-15 Gun-Sport-Pro – Ideal for hunters, shooters and gun sport enthusiasts

$519.00 $490.00

ER4XR - Earphones for Music lovers and hi-fi Enthusiasts
ER4-XR – Noise-isolating, in-ear earphones

$519.00 $412.00

Custom made ER15 Musicians Earplugs
ER Musicians Earplugs – High-fidelity earplugs made for the music industry

From: $329.00

Custom Sleeves. For Generic Fit In Ear Monitors and Earphones
Etymotic Custom-Fit – Improve the acoustical properties of your earphones

From: $209.00

MK5 Isolator Earphones by Etymotic Research

$129.00 $69.00

HF3 High-Performance Noise-Isolating Earphones
HF3 Earphones – High-performance noise-isolating earphones

$199.00 $110.00

ER38 Etymotic Earphone Tips - Small
Etymotic replacement tips


ER38 - Hearing Protection Tools
Etymotic replacement filters and tool


ER3xr main sl - Earphones
ER3-XR – A perfect match for portable media players

$309.00 $206.00

Etymotion er4xr Earphones
NEW – Etymotic ER4 XR with Etymotion Wireless Bluetooth Cable -NEW

$629.00 $539.00

ER3XR bluetooth earphones
NEW – Etymotic ER3 XR with Etymotion Wireless Bluetooth Cable

$489.00 $343.00

Etymotion er2xr2 Earphones
NEW – Etymotic ER2 XR with Etymotion Wireless Bluetooth Cable

$409.00 $275.00

ER38-50 Green Filters
Etymotic 6 replacement filters


Etymotion full bluetooth cable
Etymotic Etymotion Wireless Bluetooth Cable with AKM Velvet Sound DAC and Amplifier (NEW)

$279.00 $247.00

ER20XS Universal fit
ER-20xs High Fidelity Earplugs Universal fit – 3 tip options

$44.00 $34.95

ER20xs motorsport
ER-20xs High Definition Earplugs Motorsports – 3 tip options

$44.00 $34.95

Damper pack with filters
Etymotic damper 5 pack tuning kit

$45.00 $41.50

Etymotic Music Pro Elite plugs and case
Etymotic music pro elite musicians earplugs


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