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Etymotic ER4-XR-BT is the earphone for music lovers and hi-fi enthusiasts who want uncompromising accuracy in the midrange and high frequencies, but appreciate a bit of extra presence in the lower end. Like the ER4-SR, the ER4-XR is built with precision machined, anodized and laser-etched aluminium body and offers user-replaceable detachable cables. Paired with the new Etymotion Wireless Bluetooth cable these earphones are unstoppable and sound better than anything else on the market today.
ER4-XR-BT incorporates the stringent channel-matching standard used in the ER4-SR. The ER4-XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement. An assortment of ACCU-Fit eartips is provided in the package of the ER4-XR earphones. The triple-flange eartips reduce sound an average of 35dB, while the foam eartips provide slightly more sound reduction of 42dB.
Etymotic's original insert earphone design, developed for auditory research and medical diagnostics, used balanced armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones.
Decades of research and development.
Etymotic ER4 series earphones were the first earphones commercialised using balanced armature driver technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. ER4XR offers high accuracy, but with slightly enhanced bass.
Etymotion Bluetooth Cable
Paired with the new Etymotion Wireless Bluetooth cable these earphones are unstoppable and sound better than anything else on the market today. With built in functionality to answer calls, play/pause, and change tracks it’s the ultimate in audiophile portability.
Providing the highest noise isolation of any earphones or headphones on the market today, Etymotic ER4-XR include an assortment of noise-isolating ACCU-Fit eartips options to ensure proper seal and comfort.
The user-replaceable ACCU-Filter acoustic dampers are not only a part of the ACCU-Chamber driver housing, but also protect the balanced armature driver from ear wax. Etymotic also includes a 2 year warranty.
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