Elitegroup 257SA1 v.1 - Manual (Page 9)

■ chapter 1 getting to know the basics
1-9
When Wireless icon (key top) appears green, the wireless LAN
function is enabled. Press the quick key to disenable this
function.
27. Power / Suspend Button
The power/suspend button turns the notebook on and off and it
also acts as a system suspend key. Press momentarily to turn
on the system. Press and hold for at least 3~4 seconds to turn
off the system. How this key behaves can be defined in [Start >
Settings > Control Panel > Power Options > Advanced] menu.
Press the power / suspend button again to return from the
suspend mode. (See Chapter 2 for more details on system
suspend function.)