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Koss P9 In-Ear Headphones with Volume Control

  • New advances in materials and design have served to expand the performance of Koss products. The company's product development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible.A portable headphone is a headphone that is used on the go. Portable headphones tend to be smaller, more lightweight, and may have features that lend themselves to listening on the go, like carrying cases or collapsible headbands.The Koss P9 features behind-the-head design for maximum comfort during extended wearing periods and volume control for convenient sound adjustment. It comes with a straight, single entry 4 foot cord.


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