Etymotic invented noise-isolating, in-ear earphones. The ER4 MicroPro series earphones were the first earphones commercialized using balanced armature technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. After more than 20 years, these reference-quality earphones are still the choice of serious sound engineers, audiophiles and musicians.
- The Etymotic ER4SR Head Phone was added to the Headphones category in November 2017
- The lowest price we found for the Etymotic ER4SR Head Phone is $383.68 from Amazon Singapore
- This page provides impartial price comparison information to help you get the best deals year-round
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| Design | Ear Bud |
| Type | Noise Canceling |
