Plantronics BT300 Bluetooth 2.0 Bluetooth Adapter for Headset USB 2.0 2.40 GHz ISM 33 ft Indoor Range External - Office Depot
Plantronics Adapter-Blackwire300-DA Plantronics Blackwire 300 DA Stereo Headset 3.5mm to USB Adapter - Walmart.com
Poly - Plantronics CA12CD-S - PTT (push-to-talk) headset adapter for headset - 201059-01 - Wired Headsets - CDW.com
Amazon.com: Global Teck Worldwide 504P USB Adapter for Plantronics and Addasound Headsets Connects to Headset to PC, MAC, Lync, Skype & USB VoiP Phones - Mute, Volume and Quick Disconnect : Cell
Amazon.com: daily headset USB Adapter Cable Compatible Plantronics QD (Quick Disconnect) to USB Plug, Speaker Volume & Mic Mute Control Connects Headset to PC, Laptop, Soft Phone and More : Electronics