HP ProBook 4445s Maintenance And Service Manual page 24

Component
(1) WLAN antennas (2)*
(2) Internal microphone(s) (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 on the outside of the computer. For optimal transmission, keep the areas immediately around
the antennas free from obstructions. To see wireless regulatory notices, see the section of the Regulatory, Safety, and
Environmental Notices that applies to your country or region. These notices are located in Help and SupportTo access this
guide in Windows 8, select the HP Support Assistant app on the Start screen, select My computer, and then select the
User guides.
16 Chapter 2 External Component Identification
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.
To use the webcam to access Help and Support in WIndows 7
select Start > All Programs > Music, Photos, and Videos >
WebCam Companion.
To use the webcam to access Help and Support in WIndows 8,
from the Start screen, type help, and then select Help and
Support.
Turns off the display or initiates Sleep if the display is closed
while the power is on.
NOTE: The display switch is not visible from the outside of the
computer.