If you are looking for the entire CS60 Headset Unit (Headset/Base/Power Supply/Cable) I sell these as well. Please see eBay item number: 253184711506 for full detail.
Can also supply CS60 Base Units / CS60 Genuine Plantronics Power Supplies / CS60 Headbands and Cables to replace any faulty items if required.
Just drop me a message if you need anything not listed etc.