Plantronics Blackwire C5210 Single-Ear Corded USB Headset
Amazon.com: Plantronics - Blackwire 3210 - Wired, Single Ear (Monaural) Headset with Boom Mic - USB-A to connect to your PC and/or Mac : Everything Else
Poly - Blackwire 3220 - Wired Dual-Ear (Stereo) Headset (Plantronics) with Boom Mic - USB-A to connect to your PC and/or Mac - Newegg.com
PLANTRONICS VOYAGER B4220 2-EAR USB-A WIRELESS HEADSET - Dartmouth The Computer Store
Plantronics Blackwire C5200 USB Headset for sale online | eBay
Plantronics Blackwire 5210 Single Speaker Wired USB Headset For USB-A
Nuance Plantronics HD-GEN-002 - USB Noise Cancelling Headset
PLANTRONICS Blackwire 7225 USB Headset Black for PC Mac 211144-01