Etymotic Etymotion ER4XR Bluetooth Headphones Earwax blockage is among the

Earwax blockage is among the most common causes of muffled hearing as well as poor performance and decreased longevity of hearing instruments

An innovative Bluetooth transmitter and earphones provides a latency free

The temperature maintenance chamber utilizes electronic controls to maintain a constant 113° F temperature

which you can purchase separately whenever the capsules are consumed

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Etymotic Etymotion ER4XR Bluetooth Headphones Earwax blockage is among theEtymotic invented noise isolating, in ear earphones as the company evolved over the past 30 years. The Etymotion ER4XR sets a new standard in sound clarity for portable digital audio players. Building on the same 35dB+ noise reduction of Etymotics sound isolation, the Etymotion ER4XR uses balanced amature drivers coupled with the same capabilities of their Etymotion ER2XR and ER3XR models, but with enhanced capabilities that reach new levels of high