Hearing loss Listening to sound at high volumes may damage your hearing. To prevent possible hearing damage, do not listen at high volume levels for long periods. Background noise, as well as continued exposure to high volume levels, can make sounds seem quieter than they actually are. Use only compatible receivers, earbuds, headphones, speakerphones, or earpieces with your device. Turn on the audio and check the volume before inserting anything in your ear. For more information about hearing loss, see www.apple.com/sound/. For information about how to set a maximum volume limit on iPod nano, see Setting the maximum volume limit on page 25.
RF exposure iPod nano uses radio signals to connect to Bluetooth capable devices. Specific Absorption Rate (SAR) refers to the rate at which the body absorbs RF energy. SAR limits are
1.6Watts per Kilogram (over a volume containing a mass of 1 gram of tissue) in countries that follow the United States FCC limit and 2.0 W/Kg (averaged over 10 grams of tissue) in countries that follow the Council of the European Union limit. During testing, iPod nano Bluetooth radios are set to their highest transmission levels and placed in positions that simulate use against the body. Avoid cases with metal parts.
Radio frequency interference Observe signs and notices that prohibit or restrict the use of electronic devices (for example, in health care facilities or blasting areas). Although iPod nano is designed, tested, and manufactured to comply with regulations governing radio frequency emissions, such emissions from iPod nano can negatively affect the operation of other electronic equipment, causing them to malfunction. Turn off iPod nano or turn off Bluetooth when use is prohibited, such as while traveling in aircraft, or when asked to do so by authorities.
Medical devices iPod nano contains a radio that emits electromagnetic fields. These electromagnetic fields may interfere with pacemakers or other medical devices. If you wear a pacemaker, maintain at least 6 inches (approximately 15 cm) of separation between your pacemaker and the iPod nano. If you suspect iPod nano is interfering with your pacemaker or any other medical device, stop using iPod nano and consult your physician for information specific to your medical device. The included headphones have magnets in the earbuds, which may interfere with pacemakers, defibrillators or other medical devices. Maintain at least 6 inches (approximately 15 cm) of separation between your pacemaker or defibrillator and the earbuds.
Medical conditions If you have any medical condition that you believe could be affected by iPod nano (for example, seizures, blackouts, eyestrain, or headaches), consult with your physician prior to using iPod nano.
Explosive atmospheres Do not charge or use iPod nano in any area with a potentially explosive atmosphere, such as at a fueling area, or in areas where the air contains chemicals or particles (such as grain, dust or metal powders). Obey all signs and instructions.
Repetitive motion When you perform repetitive activities on iPod nano, you may experience occasional discomfort in your hands, arms, wrists, shoulders, neck, or other parts of your body. If you experience discomfort, stop using iPod nano and consult a physician.
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