Asus UX51VZ - Manual (Page 10)

10 Notebook PC E-Manual
Proper disposal
Do not throw your Notebook PC or battery (if applicable)
in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. The symbol of
the crossed out wheeled bin indicates that the product
(electrical, electronic equipment and mercury-containing
button cell battery) should not be placed in municipal
waste. Check local regulations for disposal of electronic
products.