The Plantronics W720-M has now been officially discontinued by the manufacturer although it may be available as a refurb. The nearest equivalent replacement product is the Plantronics W8240
DW Office ML – Unique Premium Design – Crafted for comfort (UK)
The Sennheiser DW Office USB is a stylish professional cordless headset which has been designed for exclusive use with PC soft phones. With its sleek modern design, this cordless headset is ideal for people who spend much of the day talking via connecting to your PC via USB.
DW Pro1 ML – Premium wireless single-sided DECT headset
The Sennheiser DW20 Pro 1 USB ML Cordless Headset is a stylish professional cordless headset which has been designed for exclusive use with PC soft phones – this version has been optimised for use with Microsoft Lync/Microsoft Teams and connects to a PC only.