# Etymotic Research ER4XR Extended Response Precision Matched In-Ear Earphones (Detachable Balanced Armature Drivers, Noise Isolating, High Fidelity

- Category: Headphone
- Brand: Etymotic Research
- Model: ER4XR
- Part number: ER4XR
- Price (US): $299.00
- Price last checked: 2026-08-06
- Rating: 4.4/5 from 2.8 Amazon reviews
- Warranty: 1 year
- Product page: https://buildmypc.net/component-details/headphone/etymotic-research-er4xr/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Etymotic Research |
| Model | ER4XR |
| Type | Wired |
| Color | Black |
| Frequency | 20 Hz - 16 kHz |

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