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Koss PLUG Earbuds & In Ear Headphones Item # 569389
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The Koss Plug revolutionized the world of in-ear headphones. A first of its kind, these are stereo, noise isolating in-ear headphones that deliver the kind of accurate acoustical reproduction and isolation typically found in high-end, closed-style high fidelity headphones.
|Maximum Frequency Response||20 kHz|
|Minimum Frequency Response||10 Hz|
|warranty length||limited lifetime|