






🎧 Elevate your sound game—hear every detail, miss nothing.
The ER4XR Extended Response Earphone features precision-balanced armature drivers matched within 1 dB for superior mid-to-high frequency accuracy, enhanced bass presence, and up to 42 dB noise isolation. Its durable anodized aluminum body and detachable braided MMCX cables combine style with longevity, making it a top choice for professionals and audiophiles seeking uncompromising sound quality and hearing protection.








| Control Type | Noise Control |
| Unit Count | 1.0 Count |
| Item Weight | 0.37 Kilograms |
| Is Electric | No |
| Compatible Devices | Cellphones |
| Cable Features | Detachable |
| Additional Features | Etymotic designs products to measure, improve and protect hearing, and enhance the listening experience of music lovers everywhere. Audio engineers, musicians and audiologists at Etymotic have generated over 100 patents issued and pending. |
| Enclosure Material | Aluminum |
| Headphone Folding Features | In Ear |
| Headphones Ear Placement | In Ear |
| Style Name | Earphone |
| Color | Black |
| Connectivity Technology | VGA |
| Headphone Jack | 3.5 mm Jack |
| Impedance | 45 Ohm |
| Noise Control | Sound Isolation |
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