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Koss SB40 Computer Headset with Microphone, black/gold
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Koss Multimedia Stereo Headphone with USB Plug (SB45 USB),Red
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Koss CS200 USB Double-Sided On-Ear Communication Headset, Noise-Cancelling Electret Microphone, Flexible Microphone Arm, Wired with USB Plug, Black
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