HP Pavilion dv7-4278nr Entertainment Notebook PC - Manual (Page 19)

Wireless antennas
On select computer models, at least 2 antennas send and receive signals from one or more wireless
devices. These antennas are not visible from the outside of the computer.
NOTE: 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.
Components 9