Etymotic ER3XR Extended Response Balanced Armature In-Ear Earphones

Etymotic Research

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ER3XR Extended Response
Renowned Sound With Low End Enhancement
Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic's original design, developed for auditory research and hearing testing, used balanced-armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones.

- Enhanced and extended bass response
- Sleek, precision machined metal bodies
- High performance balanced armature micro drivers
- Detachable, reinforced 4 ft cables with 3.5mm gold plated stereo plug and MMCX connectors

Why Etymotic?
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.

Why ER3XR Extended Response?
Utilizing the balanced armature drivers regarded as the gold standard for high definition, in-ear earphones, ER3 series earphones are tuned to extremely tight tolerance specs for the most accurate sound reproduction on the market. The ER3XR is designed for listeners who value the accuracy and noise isolation for which Etymotic is known but prefer a more robust presence in the lower range.

The new ER3XR incorporates significant cosmetic and functional improvements, from sleek, precision machined metal bodies to the reinforced, user-replaceable detachable cable. A must have for bass loving audiophiles and consumers.

- High performance, balanced-armature micro drivers
- 20Hz-16kHz Frequency Response
- 35-42dB Noise Isolation
- Detachable 4 ft cable with MMCX connectors
- 120 dB Max Output
- Impedance 22 ohms

Detachable, Reinforced Cables
To detach the cables, pull the cable connector away from the earphone body. Pull straight out-Do Not Twist.

To attach the cables, align the key tab on the cable connector with the notch in the body of the earphone. Press together until it snaps in place

Proper Insertion
Sound quality, full bass response and noise isolation all depend on a good eartip seal in the ear canal. While pulling up and out on the back of the ear carefully insert the earphone. Twist the earphone into the ear canal while inserting until outside noise is blocked out.

In The Box
- ER3XR Extended Response earphones.
- Filter removal tool and replacement filters.
- Assorted eartips.
- Carrying Pouch.
- Shirt Clip.


Shipping is always free within the Continental U.S. on any product ordered. We also offer free Expedited shipping on most items $99 and over that are not oversize freight since this service is simply not available: select the option that best meets your needs, transit typically takes 2-3 business days* (if you choose an option not available we will automatically ship the next available as free standard). While most orders ship UPS ground, we use a variety of carriers, thus your package may be delivered via FedEx, UPS, USPS, ENSENDIA, LASERSHIP, ONTRAC, BLUE_PACKAGE or PRESTIGE but always fully insured. Shipping cost and options are shown during checkout. In Stock items should arrive in 1-7 business days, depending on your location and method of shipment. For more details on Shipping.

EASY RETURNS maintains a full, money-back guarantee (excluding any shipping charges) on items returned within 30 days of purchase, if for any reasons you are not fully satisfied.
You may return a defective product for refund or exchange.
All returns require authorization and original packaging otherwise we reserve the right to charge a restocking fee.
Defective or non-defective returns are processed differently. Items do not necessarily go back to the location from which they shipped.
Shipping and handling charges are not refundable.
Returned items that are lost or damaged during transit is solely the shipper's responsibility (which is YOU, when you return an item to us). It is important to send us and save the tracking information.
After receiving the item you must contact us within 30 days from the date of product receipt with the reason for the return and secure a Return authorization number (RA #) and return details.
For more details on Returns.

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