Additional safety information, Additional, Safety – Lenovo 6491 User Manual
Page 18: Information
complies
with
EN
50332-2
Sub
clause
5.1.
This
specification
limits
the
computer’s
maximum
wide
band
true
RMS
output
voltage
to
150mV.
To
help
protect
against
hearing
loss,
ensure
that
the
headphones
or
earphones
you
use
also
comply
with
EN
50332-2
(Sub
clause
6.1)
for
a
wide
band
characteristic
voltage
of
75mV.
Using
headphones
that
do
not
comply
with
EN
50332-2
can
be
dangerous
due
to
excessive
sound
pressure
levels.
If
your
Lenovo
computer
came
with
headphones
or
earphones
in
the
package,
as
a
set,
the
combination
of
the
headphones
or
earphones
and
the
computer
already
complies
with
the
specifications
of
EN
50332-1.
If
different
headphones
or
earphones
are
used,
ensure
that
they
comply
with
EN
50332-2.
(Sub
clause
6.1)
for
a
wide
band
characteristic
voltage
of
75mV.
Using
headphones
that
do
not
comply
with
EN
50332-2
can
be
dangerous
due
to
excessive
sound
pressure
levels.
Additional
safety
information
Plastic
bags
can
be
dangerous.
Keep
plastic
bags
away
from
babies
and
children
to
avoid
danger
of
suffocation.
xvi
User
Guide