Asus X502CA - Manual (Page 18)

18 Notebook PC E-Manual
Bottom
NOTE: The bottom side may vary in appearance depending on model.
WARNING! The bottom of the Notebook PC can get warm to hot
while in use or while charging the battery pack. When working on
your Notebook PC, do not place it on surfaces that can block the
vents.
IMPORTANT! Battery time varies by usage and by the specifications
for this Notebook PC. The battery pack cannot be disassembled.
Air vents
The air vents allow cool air to enter and warm air to exit the
Notebook PC.
WARNING! Ensure that paper, books, clothing, cables, or other
objects do not block any of the air vents or else overheating
may occur.
Audio speakers
The built-in audio speakers allow you to hear audio straight
from the Notebook PC. The audio features of this Notebook PC
are software-controlled.