Born in Milwaukee. Legendary Koss Headphones like the World’s first SP/3 Stereophone, ESP6, HV/1A, Pro4/AA, Porta Pro, KPH30i & Pro4S were all born in the city we call home - Milwaukee, WI USA. | Koss
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Born in Milwaukee. Legendary Koss Headphones like the World’s first SP/3 Stereophone, ESP6, HV/1A, Pro4/AA, Porta Pro, KPH30i & Pro4S were all born in the city we call home - Milwaukee, WI USA. | Koss
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New Features. Same Game Changing Audio. Explore the latest Gaming Headsets from Koss, now with in-line volume controls and mute switch. Learn More: https://www.koss.com/gaming | Koss
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