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The above illustration shows the keyboard delivered with the models that are available in USA and Canada. The keyboard for the models available in Latin American countries and areas appears different from the above.
AFunction keys
Perform certain tasks. The task associated with each function key varies among software applications.
BMute button
Turns the volume on and off.
CVolume control buttons
Increases (+) or decreases
DShortcut buttons
Launch the
EStandby button
Provides for the lowest level of power consumption.
For details on power management, see Using the Power Saving Modes (page 87).
FPOWER switch
Slide the POWER switch to turn on and off the wireless keyboard.
GIndicators
(Battery): 
appears while the AA batteries for the
keyboard are sufficient and switches to 
when the batteries wear out.
(Num lock): Appears while in the Num Lock state.
(Caps lock): Appears while in the Caps Lock state.
(Scroll lock): Appears while in the Scroll Lock state.
(Connect): Appears while connection between the computer and the keyboard is in place to indicate that the keyboard is ready for use (page 23).
HWindows key
Displays the Start menu.
IApplications key
Displays a shortcut menu in certain software applications.
JDirection arrows
Move the pointer on the computer screen.
KNumeric keypad
Use the numeric keypad to type numbers or to perform basic math calculations.