Plantronics MDA200 Headset Communications Hub 83757-01 PC USB Switch Allows choice of one corded or wireless USB headset for users in-the-office or on-the-go Simple User Interface to easily answer/end hold and switch between desk phone and PC calls Supports remote call control with Plantronics corded and wireless USB headsets, and manages calls from PC, desk phone and even a mobile phone when used with Bluetooth USB headsets (like Voyager PRO UC) Plug-and-play, no hassle installation True voice clarity with wideband/stereo audio support