HP ProBook 4320s Notebook-PC - Manual (Page 24)

Component Description
(1) Internal display switch Turns off the display if the display is closed while the power is on.
(2) Internal microphone Records sound.
(3) Webcam light (select models only) On: The webcam is in use.
(4) Webcam (select models only) Records video and captures still photographs.
Wireless antennas (select models only)
The antennas send and receive signals from one or more wireless devices. These antennas are not
visible from the outside of the computer.
12 Chapter 1 Features