Etymotic Research ER4XR

Developed as an update to Etymotic’s ER-4 flagship-line of earphones, the Etymotic ER4XR deliver reference-quality sound reproduction with a modest bass boost and high output levels for discerning sound engineers, audiophiles, and musicians who demand the highest fidelity.

The ER4XR feature balanced-armature technology, custom-tuned drivers, L-R channels matched within an industry-leading 1 dB, and 3-flange eartips which completely seal the ear to offer an impressive 98% of sound isolation. Their high sensitivity allows them to deliver a robust sound level up to 122 dB, making them well suited for portable media players with low output.

The ER4XR combine style and functionality with a sleek, anodized and laser-etched aluminum body, and a detachable, reinforced cable which is user-replaceable. They come with four pairs of 3-flange eartips, two pairs of foam eartips, a shirt clip, a filter removal tool &filters, and a zippered storage case.

*Headphones.com is very pleased to announce that you have even more options to pay for your Etymotic ER4XR in-ear headphones! Now when you hit the Pay with Crypto button, you have the option to pay with currencies such as NANO, Bitcoin, Litecoin, Ethereum and more! We are very excited to able to give you these options now and for the future!*