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Available now in an all-new Stealth Grey colorway
intuitive access to quick audio adjustments
block outside noise
the Koss QZ99 Passive Noise Reduction Headphones feature superior isolating capabilities and secure over-the-head headband design
Plug Colors Color:Black Available now in an all-newThe 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. Learn More about on placing International Orders from Koss. com
