Owner's Manual

Chapter 5 Safety, handling, and support 47
Hearing loss. Listening to sound at high volumes may damage your hearing. Background noise,
as well as continued exposure to high volume levels, can make sounds seem quieter than they
actually are. Use only compatible earbuds, headphones, or earpieces with your MacBook. Turn on
the audio and check the volume before inserting anything into your ear. For more information
about hearing loss, see www.apple.com/sound.
WARNING: To prevent possible hearing damage, do not listen at high volume levels for
long periods.
Radio frequency exposure. MacBook uses radio signals to connect to wireless networks. For
information about radio frequency (RF) energy resulting from radio signals and steps you can
take to minimize exposure, see www.apple.com/legal/rfexposure.
Medical device interference. MacBook contains components and radios that emit
electromagnetic elds, which may interfere with pacemakers, debrillators, or other medical
devices. Maintain a safe distance of separation between your medical device and MacBook.
Consult your physician and medical device manufacturer for information specic to your medical
device. If you suspect MacBook is interfering with your pacemaker or any other medical device,
stop using MacBook.
Medical conditions. If you have a medical condition that you believe could be aected by using
MacBook (for example, seizures, blackouts, eyestrain, or headaches), consult with your physician
prior to using MacBook.
Repetitive motion. When you perform repetitive activities such as typing or playing games on
MacBook, you may experience discomfort in your hands, arms, wrists, shoulders, neck, or other
parts of your body. If you experience discomfort, stop using MacBook and consult a physician.
Choking hazard. Some MacBook accessories may present a choking hazard to small children.
Keep these accessories away from small children.
High-consequence activities. Your MacBook is not intended for use where the failure of the
computer could lead to death, personal injury, or severe environmental damage.
Explosive atmospheres. Charging or using your MacBook in any area with a potentially
explosive atmosphere, such as areas where the air contains high levels of ammable chemicals,
vapors, or particles (such as grain, dust, or metal powders), may be hazardous. Obey all signs
and instructions.
Important handling information
Operating environment. Operating your MacBook outside these ranges may aect performance:
•
Operating temperature: 50° to 95° F (10° to 35° C)
•
Storage temperature: -13° to 113° F (-25° to 45° C)
•
Relative humidity: 0% to 90% (noncondensing)
•
Operating altitude: Tested up to 10,000 feet (0 to 3048 meters)
Carrying your MacBook. If you carry your MacBook in a bag or briefcase, make sure there are
no loose items (such as paper clips or coins) that could accidentally get inside the computer
through vent openings or get stuck inside the USB-C port.
Using connectors and ports. Never force a connector into the USB-C port. When connecting a
device, make sure the port is free of debris, that the connector matches the port, and that you
have positioned the connector correctly in relation to the port.
74% resize factor