Beats by Dr Dre Monster series Handbuch Und Garantieschein Seite 3

English
important Performance and safety
Tips for your headphones
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* on the following page.
This decibel (dB) table compares some common sounds and shows
how they rank in potential harm to hearing.
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English
SOUND NOISE LEVEL
(dB)
Whisper 30
Quiet Office 50-60
Vacuum Cleaner, Hair Dryer 70
Food Blender 85-90
Garbage Truck, Cement 100
Mixer
Power Saw, Drill/ 110
Jackhammer
Rock Concerts (varies) 110-140
*Chart information obtained from http://www.nidcd.nih.gov/health/education/teachers/common_sounds.asp
EFFECT
Very quiet
Comfortable hearing levels
are under 60 dB
Intrusive; interferes with
telephone conversations
85 dB is the level at which
hearing damage (8 hrs.)
begins
No more than 15 minutes
of unprotected exposure
recommended for sounds
between
90-100 dB
Regular exposure to sound
over 100 dB of more than
1 minute risks permanent
hearing loss
Threshold of pain begins
around 125dB
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