Coby NBPC1220 Manuel D'instructions page 15

Basic Operation
Key
Fn + Esc
Fn + F1
Fn + F3
Fn + F4
Fn + F5
Fn + F6
Fn + F7
Fn + F8
Fn + F9
Fn + F10
Fn + Ins/NumLk
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Put your computer in sleep mode.
Enable/disable the built-in wireless internet.
Mute.
Enable/disable the touch pad.
Shift to other connected display devices, i.e. another monitor.
Decrease display brightness.
Increase display brightness.
Decrease computer volume.
Increase computer volume.
Turn on/off the LCD screen.
Enable/disable the Numeric keypad.
Description
Page 15