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Etymotic Research ER-4PT MicroPro Noise-Isolating In-Ear Earphones (Black)
ER-4 MicroPro serie...
show mores earphones were the first noise-isolating, high-fidelity in-ear earphones. After 20 years, these reference-quality earphones continue to be the choice of sound engineers, audiophiles, and musicians--and now, with the ER-4PT, you can take this audiophile experience with you anywhere. Based on Etymotic's ACCU-Technology platform, ER-4PT earphones have unsurpassed frequency response accuracy. In addition to a braided cable to reduce annoying microphonic effects, the ER-4PTs have the highest noise isolation of any earphones in any category: 35-42dB, or 98% ambient noise reduction. This reduction of outside noise diminishes the risk of listening at unsafe levels, leaving you to listen comfortably in a world of pure music.show less