Plantronics EncorePro HW520 Binaurales Kopfbügelmodell mit 4 Pin QD Buy
Plantronics Encore Pro HW520 Corded Duo Headset | Nortel, Polycom, Cisco, Mitel, Avaya, ShoreTel and other business phones | Requires Adapter | 89434-01
504P USB Adapter for Plantronics and Addasound Headsets - by Global Teck Worldwide | Connects to Headset to PC, MAC, Lync, Skype & USB VoiP Phones | Mute, Volume and Quick Disconnect :