HP ProBook 6440b Notebook-PC - Manual (Page 27)

Component Description
(1) Internal display switch Turns off the display or initiates Sleep if the display is closed while
the power is on.
(2) Internal microphones (2) Record sound.
NOTE: If there is a microphone icon next to each microphone
opening, your computer has internal microphones.
(3) Webcam light (select models only) On: The webcam is in use.
(4) Webcam (select models only) Records audio and video and captures still photographs.
Wireless antennas (select models only)
NOTE: Your computer may look slightly different from the illustration in this section.
Identifying hardware 17