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Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Design, Stealth Grey: Amazon.co.uk: Electronics & Photo
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Koss Porta Pro Limited Edition Black Gold On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Includes Hard Carrying Case, Wired with 3.5mm Plug, Black and Gold: Amazon.co.uk: Electronics & Photo
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