New WH66 Mono UC headset, Teams version, model 1308002(c)New in box, never opened.The WH66 is a wireless headset that connects to a base station with a touch interface.The base station connects to your PC via a USB A or C cable.You can use this as a wireless PC headset, or as a wireless headset for your bluetooth enabled desk phone.You can also connect your cell phone via bluetooth and answer incoming calls with the headset.