Magnetometer - Blackberry Curve 9380 Safety And Product Information

or without a USB cable, hold your BlackBerry smartphone at least 0.59 in.
(15 mm) from your body. Using accessories that are not supplied by or
approved by RIM might cause your BlackBerry smartphone to exceed radio
frequency exposure guidelines. For more information about radio
frequency exposure, see the "Compliance information" section of this
guide.
Most BlackBerry carrying solutions for BlackBerry smartphones (for
example, holsters, totes, and pouches) incorporate a magnet into the
physical structure of the carrying solution. Do not place items containing
magnetic strip components, such as debit cards, credit cards, hotel key
cards, phone cards, or similar items, near BlackBerry carrying solutions that
incorporate a magnet into the physical structure of the carrying solution.
The magnet might damage or erase the data stored on the magnetic strip.

Magnetometer

Your BlackBerry smartphone includes a magnetometer. The magnetometer
is used by applications such as the Compass application. Magnets-or
devices that contain magnets, such as holsters, headphones, or monitors-
might negatively affect the accuracy of the magnetometer. Do not rely
solely on applications that use the magnetometer to determine your
location. In an emergency situation, do not rely solely on applications that
use the magnetometer.
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