Logitech 9613710403 Viewport Av 100 Pc Cam Professional quality images - VGA CCD sensor with 3x digital zoom Automatic face-tracking - Viewers see you, not your office, even if you move around the room Integrated Bluetooth headset - Move around your desk and keep your hands free for writing or explaining Conference mode - Place the headset in the cradle and sound is automatically routed through your PC speakers Acoustic Echo Cancellation - For crystal-clear sound when using your PC speakers to listen to a call