27
petroleum
gas
(such
as
propane
or
butane)
whether
this
device
can
be
safely
used
in
their
vicinity.
Traffic
Security
Observe
local
laws
and
regulations
while
using
the
device.
In
addition,
if
using
the
device
while
driving
a
vehicle,
comply
with
the
following
guidelines:
Concentrate
on
driving.
Your
first
responsibility
is
to
drive
safely.
Do
not
talk
on
the
device
while
driving.
Use
hands
‐
free
accessories.
When
you
have
to
make
or
answer
a
call,
park
the
vehicle
at
the
road
side
before
using
your
device.
RF
signals
may
affect
electronic
systems
of
motor
vehicles.
For
more
information,
consult
the
vehicle
manufacturer.
In
a
motor
vehicle,
do
not
place
the
device
over
the
air
bag
or
in
the
air
bag
deployment
area.
Otherwise,
the
device
may
hurt
you
owing
to
the
strong
force
when
the
air
bag
inflates.
Do
not
use
your
device
while
flying
in
an
aircraft.
Power
off
your
device
before
boarding
an
aircraft.
Using
wireless
devices
in
an
aircraft
may
cause
danger
to
the
operation
of
the
aircraft
and
disrupt
the
wireless
telephone
network.
It
may
also
be
considered
illegal.
Operating
Environment
Do
not
use
or
charge
the
device
in
dusty,
damp,
and
dirty
places
or
places
with
magnetic
fields.
Otherwise,
it
may
result
in
a
malfunction
of
the
circuit.
The
device
complies
with
the
RF
specifications
when
the
device
is
used
near
your
ear
or
at
a
distance
of
1.5
cm
from
your
body.
Ensure
that
the
device
accessories
such
as
a
device
case
and
a
device
holster
are
not
composed
of
metal
components.
Keep
