Acer ICONIA - Manual (Page 24)

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Enabling wireless devices
Device Control allows you to enable and disable the various wireless
connectivity devices on your computer.
Open Device Control from Acer Ring or press <Fn> + < > (the <F3> button)
to open Device Control.
A red button indicates the device is off.
•
Tap ON to turn the device on.
A blue button indicates the device is on.
•
Tap OFF to turn the device off.
Tap the device name to open the Windows Control Panel to adjust the
advanced settings for each device.