HP ProBook 4440s User Manual page 28

Component
(1) WLAN antennas (2)*
(2) Internal microphones (1 or 2 depending on
model)
(3) Webcam light (select models only)
(4) Webcam (select models only)
(5) Internal display switch
*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately
around the antennas free from obstructions. To see wireless regulatory notices, refer to the section of the Regulatory, Safety,
and Environmental Notices that applies to your country or region.
18 Chapter 2 Getting to know your computer
Description
Send and receive wireless signals to communicate with wireless
local area networks (WLAN).
Record sound.
On: The webcam is in use.
Records video and captures still photographs.
Turns off the display or initiates Suspend if the display is closed
while the power is on.
NOTE: The display switch is not visible from the outside of the
computer.