Etymotic ER3XR Extended Response Balanced Armature In-Ear Earphones (Open Box)

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.

Specifications
- 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.