Nikon Z 9 Reference Manual page 27

Do not handle the plug when charging the product or using the AC
adapter during thunderstorms.
Failure to observe this precaution could result in electric shock.
Do not handle with bare hands in locations exposed to extremely high
or low temperatures.
Failure to observe this precaution could result in burns or frostbite.
A CAUTION
Do not leave the lens pointed at the sun or other strong light sources.
Light focused by the lens could cause fire or damage to product's internal
parts. When shooting backlit subjects, keep the sun well out of the frame.
Sunlight focused into the camera when the sun is close to the frame could
cause fire.
Turn the product off when its use is prohibited. Disable the location
data feature. End location tracking. Disable wireless features when the
use of wireless equipment is prohibited.
The radio-frequency emissions produced by this product could interfere
with equipment onboard aircraft or in hospitals or other medical facilities.
Remove the battery and disconnect the AC adapter if this product will
not be used for an extended period.
Failure to observe this precaution could result in fire or product
malfunction.
Do not fire the flash in contact with or in close proximity to the skin or
objects.
Failure to observe this precaution could result in burns or fire.
For Your Safety
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