Brand new Koss "Porta Pro" On-Ear Headphones, black ref/365/am/ey/bb The ultra portable on-ear headphones - Comfort Zone setting on temporal pad for comfortable secure fit - The ultimate active headphones with a collapsible headband design for protective storage - Dynamic element for extended frequency response - Oxygen-free copper voice coils deliver deep bass and signal clarity - Includes a convenient carrying case for protective storage - Covered under the Koss Stereophones Limited Lifetime Warranty

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