Etymotic Research
Etymotic ER4 XR Noise-Isolating Earphones with Etymotion Wireless Bluetooth Cable
Best high-fidelity in-ear monitors for audiophiles seeking portable, noise-isolating sound.
Etymotic, the inventor of noise-isolating in-ear headphones over 30 years ago, presents the ER4 XR earphones. Originally developed for hearing research, these earphones set a benchmark for high-definition audio. Paired with the new Etymotion wireless Bluetooth cable, they offer unparalleled sound quality and portability for audiophiles. Integrated controls allow for easy management of calls, playback, and track selection, making them the ultimate choice for on-the-go listening with exceptional clarity and detail.
$399.95
Owner Satisfaction
4.5
/ 5
Category Rank
791
/ 6142
#791 in Headphones
Price vs Category Average
-32%
Below average
Connectivity
Bluetooth
/ Bluetooth
Who it's for
- Audiophiles seeking studio-grade accuracy and balanced bass response
- Commuters needing total silence in noisy environments
- Listeners wanting both wired fidelity and wireless convenience
Who should skip it
- Users sensitive to deep-insertion ear canal pressure
- Active individuals distracted by cable friction noise
- Budget-conscious shoppers prioritizing value over premium performance
Performance breakdown
Audio Fidelity
Balanced armature drivers deliver surgical precision and unmatched studio-grade clarity.
Noise Isolation
Deep-insertion design effectively silences the world without needing active electronics.
Wireless Versatility
The Etymotion cable adds convenient Bluetooth freedom to a legendary wired platform.
Ergonomic Comfort
The deep-fit seal provides secure isolation but requires adjustment for long sessions.
Build Quality
Industrial-grade construction built to withstand the rigors of professional daily use.
Portability
Compact form factor makes these the ultimate travel companion for critical listeners.
Key Specs
Connectivity
Bluetooth
Noise Cancellation
Passive Noise Isolation
Microphone
No
High Resolution Audio Support
Yes
Spatial Audio Support
No
Intended Use
Audiophile, Portable
Foldable Design
No
Headphone Type
In-Ear
Features
- Industry-leading noise isolation technology
- High-definition audio with balanced armature receivers
- Includes Etymotion wireless Bluetooth cable for untethered listening
- Integrated controls for calls and playback
- Designed for audiophiles seeking premium sound quality
- Compact and portable for on-the-go use
What customers say
Customers consistently praise the Etymotic ER4 XR earphones for their exceptional sound quality, delivering a remarkably clear and detailed audio experience. The noise isolation capabilities are frequently highlighted as outstanding, effectively blocking external distractions for an immersive listening session. While the deep insertion fit requires some adjustment for new users, the benefits of superior sound and isolation often outweigh initial comfort considerations, making them a top choice for critical listeners seeking precision and quiet.
Know before you buy
Unlike active noise cancellation, which uses electronics to counteract sound, these earphones use a deep-insertion design to physically block external noise. This provides a very high level of isolation without the need for batteries or the potential hiss sometimes associated with active systems.
Yes. The ER4 XR earphones feature detachable cables, meaning you can swap the included Etymotion Bluetooth cable for a standard wired cable if you prefer a direct connection or need to conserve battery.
The ER4 XR is designed for precision, which requires a deep fit in the ear canal. While this provides industry-leading isolation, some users may find the fit takes time to get used to; we recommend experimenting with the included eartips to find the most comfortable seal for your ears.
The integrated controls are designed to manage standard playback, volume, and call functions for most modern smartphones and tablets. Compatibility is generally universal across iOS and Android devices, though specific button behavior may vary slightly depending on your device's operating system.
These earphones are engineered for accuracy and clarity, offering a balanced sound profile that stays true to the original recording. The 'XR' designation indicates an extended response, providing a slightly enhanced bass presence compared to the standard ER4 model while maintaining the brand's signature analytical detail.
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$400