5
ENGLISH
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A
Important
Monster® Performance and Safety Tips
Listen Responsibly
To
avoid hearing damage, make sure
that
the
volume
on
your
music player
is
turned
down
before
connecting
your
headphones. After placing headphones in
your
ears,
gradually
turn
up
the
volume
until
you reach a
comfortable
listening level.
Noise levels are measured in decibels (dB), exposure
to
any
noise at
or
above 85 dB can cause gradual hearing loss.
Monitor
your
use; hearing loss
is
a
function
of
loudness
versus time. The
louder
it
is,
the
less
time
you can be exposed
to
it. The softer
it
is,
the
more
time
you can listen
to
it. Refer
to
the
chart*
below.
This
decibel
(dB)
table compares some common sounds and
shows how they rank in potential harm
to
hearing.
ENGLISH
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SOUND
NOISE
LEVEL
EFFECT
(dB)
Whisper
30 Very
quiet
Quiet Office
50-60
Comfortable hearing
levels are under 60
dB
Vacuum Cleaner, Hair 70 Intrusive; interferes
with
Dryer
telephone conversations
Food Blender
85-90
85 dB
is
the level
at
which
hearing damage
(8
hrs.)
begins
Garbage Truck, Cement 100 No more than
15
minutes
Mixer
of
unprotected exposure
recommended for sounds
between
90-1
00
dB
Power
Saw,
Drill/ 110
Regular exposure
to
Jackhammer sound over 100 dB
of
more than 1
minute
risks
permanent hearing loss
Rock
Concerts (varies) 110-140
Threshold
of
pain begins
around 125 dB
*Chart information obtained from
http://www.nidcd.nih.gov/health/education/teachers/common_sounds.asp
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