Plantronics ENCOREPRO 540 (HW540) Wired Headset | For Nortel, Polycom, Cisco, Mitel, Avaya, ShoreTel and other business phones | Requires Adapter
Plantronics - Blackwire 3220 - Wired Dual-Ear (Stereo) Headset with Bo – HHgregg Electronics
Poly Blackwire 7225 Wired Usb-a Headset (plantronics) - Black - Dual-ear (stereo) Headset - Connect To Pc / Mac Via Usb-a - Active Noise Canceling : Target
Plantronics Blackwire C435 Headset Mono Stereo USB Wired Over the ear Binaural Open Noise Cancelling Microphone - Office Depot
Plantronics Poly Voyager 4300 UC 4310 C Headset - Mono - USB Type A - Wired/Wireless - Bluetooth - 164 ft - 20 Hz - 20 kHz - Over-the-head - Monaural - Ear-cup - 4.92 ft Cable - Noise Cancelling - Newegg.com
Plantronics Blackwire C5220 Dual-Ear Corded USB Headset | Headsets.com