MSI GE70 User Manual page 37

Increase the LCD brightness.
+
Decrease the built-in speaker's volume.
+
Increase the built-in speaker's volume.
+
Disable the computer's audio function.
+
Force the computer into sleep state (depending on the system
configuration).
+
Quick Launch [Fn] Keys
Use the [Fn] buttons on the keyboard to activate the specific applications or tools.
With the help of these quick launch buttons, users will be able to do work more efficiently.
+
User Defined
+
ECO Engine
(Power Saving)
+
Webcam
+
WLAN
(WiFi)
+
Bluetooth
(Optional)
Press and hold the Fn button, and then press the F4 button
to launch the User Defined application.
Press and hold the Fn button, and then press the F5 button
repeatedly to switch among various power saving modes
provided by ECO Engine, or to turn this function off
recurrently.
Press and hold the Fn button, and then press the F6 button
to turn the Webcam function on. Press again to turn it off.
Press and hold the Fn button, and then press the F8 button
repeatedly to turn the Wireless LAN (WiFi) function on or
off recurrently.
Press and hold the Fn button, and then press the F9 button to
turn the Bluetooth function on. Press again to turn it off.
This function button will not be available when the Bluetooth
function is not supported.
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