Amazon.com: Plantronics - Blackwire 5210 - Wired, Single Ear (Monaural) Headset with Boom Mic - Computer Headset - USB-A, 3.5 mm to connect to your PC, Mac, Tablet and/or Cell Phone : Everything Else
Plantronics Audio DSP USB Adapter to Dual 3.5mm Female for analog Headset to PC | eBay