DW Pro 2 – DECT Binaural Wireless Headset with base station for PC Only If using Skype for Business, use the Sennheiser DW Pro 2 USB ML which is optimized for use with Microsoft Lync. This headset comes in a Monaural version: the Sennheiser DW Pro 1 USB. To connect to a desk phone only, the Sennheiser DW Pro 2 PHONE is more suitable. For a headset that connects to both the deskphone and PC, the Sennheiser DW Pro 2 is more suitable. Buy now:- https://www.headsetsonly.com.au/shop/sennheiser-dw-pro-2-binaural-usb-wireless-headset-dw30-usb/