Monster iSport In-Ear Black (128660-00) - Инструкция по эксплуатации - Страница 3

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 / on 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. 

This decibel (dB) table compares some common 

sounds and shows how they rank in potential 
harm to hearing.

SOUND

NOISE LEVEL (dB)

EFFECT

Whisper

30

Very quiet 

Quiet Office

50–60

Comfortable hearing levels are under 60 dB 

Vacuum Cleaner, Hair Dryer

70

Intrusive; interferes with telephone conversations

Food Blender

85–90

85 dB is the level at which hearing damage (8 hrs.) begins

Garbage Truck,  
Cement Mixer

100

No more than 15 minutes of unprotected exposure 
recommended for sounds between 90–100 dB

Power Saw, Drill/Jackhammer 110

Regular exposure to 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 www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx

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