(2) WLAN antennas (2)* Send and receive wireless signals to communicate with
wireless local-area networks (WLANs).
*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. These notices are located in Help and Support.
Additional hardware components
(1) Power cord* Connects an AC adapter to an AC outlet.
(2) AC adapter Converts AC power to DC power.
(3) Battery* Powers the computer when the computer is not plugged into
*Batteries and power cords vary in appearance by region and country.
Identifying the labels
The labels affixed to the computer provide information you may need when you troubleshoot system
problems or travel internationally with the computer.
Service tag—Provides important information including the following:
Identifying the labels 11