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Key Features
- Balanced-Armature Drivers
- Noise-Isolating Design (98%)
- Enhanced and Extended Bass
- 20 Hz to 16 kHz Frequency Response
Developed as an update to Etymotic's ER-4 flagship-line of earphones, the ER4XR deliver reference-quality sound reproduction with a modest bass boost and high output levels for discerning sound engineers, audiophiles, and musicians who demand the highest fidelity.
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Expected availability: 7-14 Business Days
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