GoPro HERO 4 BLACK Mode D'emploi page 58

/ Setup Mode
LEDS
This setting determines which camera status lights (red) to activate.
The options for this setting are 4 (top, bottom, front, back), 2 (front and
back), or off (none). The default setting is 4.
Note: The Wireless status light (blue) is always activated unless you select off for this setting.
BEEPS
You can set the volume for the sound indicators to be 100% (default),
70% or off.
VIDEO FORMAT
The Video Format setting governs frame rates for recording and
playback when viewing video on a TV/HDTV.
Setting
NTSC (default)
PAL
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Description
Viewing video in North America
Viewing video on a PAL TV/HDTV (most
televisions outside of North America)