Asus UX51VZ - Manual (Page 16)

16 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.
Audio speakers
This Notebook PC uses SonicMaster technology developed in
collaboration with Bang & Olufsen ICEPower® to provide hi-fi
sound quality, with richer bass sounds, straight from the built-
in audio speakers.