Specifications

2 External component identification
Display
Component Description
(1) Internal display switch 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.
(2) WLAN antennas (2)* Send and receive wireless signals to communicate with wireless
local area networks (WLAN).
(3) WWAN antennas (2)* (select models only) Send and receive wireless signals to communicate with wireless
wide-area networks (WWAN).
(4) Internal microphone(s) (1 or 2 depending on
model)
NOTE: Single microphone provided for non-
webcam models and dual microphones provided
for webcam models.
Record sound.
8 Chapter 2 External component identification