Audio files: Permanent hearing loss might occur if you listen to audio files
at high volumes, particularly with headphones. Avoid increasing the volume
of your headphones to block out noisy surroundings. If you experience
ringing in your ears or muffled speech, consult a physician to have your
hearing checked.
Camera: If your BlackBerry device has a camera, do not aim the camera
directly at the sun or any other bright light. This action could cause serious
damage to your eyes or damage your BlackBerry device. When using the
camera flash, keep the camera flash LED aperture at least 19.69 in. (50 cm)
from the subject's eyes.
Antenna
Use only the supplied integrated antenna. Unauthorized antenna
modifications or attachments could damage the BlackBerry device and
might violate U.S. Federal Communications Commission (FCC) regulations.
Interference with electronic equipment
Most modern electronic equipment is shielded from radio frequency
signals. However, certain electronic equipment might not be shielded
against the radio frequency signals from your BlackBerry device.
Pacemakers: Consult a physician or the manufacturer of your pacemaker if
you have any questions regarding the effect of radio frequency signals on
your pacemaker. Verify that you are using your BlackBerry device in
accordance with the safety requirements associated with your particular
pacemaker, which might include the following requirements:
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