Etymotic ER4PT MicroPro Earphones w/ Travel Kit (Pro Version) B2B 5mm minijack plug on one

5mm minijack plug on one end and two female TS mono 3

110 OHM impedance

and collaborative environments

while the USB connectivity allows for seamless integration with your computer or recording device

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Etymotic ER4PT MicroPro Earphones w/ Travel Kit (Pro Version) B2B 5mm minijack plug on oneEtymotic invented noise isolating, in ear earphones. 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 forhigh definition, in ear earphones. The ER4 MicroPro series earphones were the first earphones commercialized using this technology and are recognized as the world leader in response accuracy, to which all other