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Calisto 610 plantronics portable corded usb speakerphone for pc calls p610 600 series speakerphone hands-free 201859-01 按鍵電話機免提電話視訊會議全雙工360度收音擴音器喇叭麥克風SKYPE LINE,
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Amazon.com: Plantronics 76805-04 .Audio 610 USB + 3.5mm Monaural PC USB Headset - Bulk Packaged : Electronics
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