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The Sonim XP3900 device
is waterproof and can be
submerged to 2 meters for 30
minutes.
Water droplets may condense
under the display cover if the
phone is immersed in water
with a significant drop in
temperature. This does not
indicate water leakage and
the droplets will disappear
when the display reaches
room temperature.
The Sonim XP3900 is dust-
resistant, rugged and shock-
resistant. However, it is not
dust-proof or unbreakable if
subjected to overwhelming
impact. For best results and
long product life, one should
protect the Sonim XP3900
from salt water, dust and
strong impacts.
AVOID EXTREME TEMPERATURE
Leaving the device in hot or cold places, such as in a
closed car in summer or winter conditions, reduces the
capacity and lifetime of the battery. For the best results,
try to use the device between -20°C and +55°C (-4°F
and 131°F). A device with a hot or cold battery may
not work temporarily, even when the battery is fully
charged. Battery performance is particularly limited in
temperatures well below freezing.
PERSONAL MEDICAL DEVICES
Mobile phones may affect the operation of cardiac
pacemakers and other implanted equipment. Please
avoid placing the mobile phone over the pacemaker, for
example in your breast pocket. When using the mobile
phone, place it at the ear opposite the pacemaker. If a
minimum distance of 15 cm (6 inches) is kept between
the mobile phone and the pacemaker, the risk of
interference is limited. If you suspect that interference
is taking place, immediately turn off your mobile phone.
Contact your cardiologist for more information. For
other medical devices, consult your physician and the
manufacturer of the device. Comply with instructions to
switch off the device or deactivate the RF transmitter
when required, especially when posted in hospitals
and airplanes. Equipment used in these places may be
sensitive to radio waves emitted from the device and
adversely affect their operation. Also, observe restrictions
at gas stations or other areas with flammable atmosphere
or when close to electro-explosive devices.
CHILD SAFETY
Do not allow children to play with your mobile phone or
its accessories. Keep it out of their reach. They could hurt
themselves or others, or could accidentally damage the
mobile phone or accessories. Your mobile phone and
its accessories may contain small parts, which could be
detached and create a choking hazard.
EMERGENCY CALLS
Mobile phones operate using radio signals, which cannot
guarantee connection under all conditions. Therefore
you should never rely solely upon any mobile phone for
essential communications (e.g. medical emergencies).
Emergency calls may not be possible in all areas, on all
cellular networks, or when certain network services and/
or mobile phone features are in use. Check with your
local service provider.
SAFETY AND REGULATORY INFORMATION