Optimus CD-3720 Portable CD Player User Manual


 
17
Listening Safely
To protect your hearing, follow these guidelines when you use earphones
or headphones.
Set the volume to the lowest setting before you begin listening. After
you begin listening, adjust the volume to a comfortable level.
Do not listen at extremely high volume levels. Extended high-volume
listening can lead to permanent hearing loss.
Once you set the volume, do not increase it. Over time, your ears
adapt to the volume level, so a volume level that does not cause dis-
comfort might still damage your hearing.
Traffic Safety
Do not wear earphones or headphones while operating a motor vehicle or
riding a bicycle. This can create a traffic hazard and could be illegal in
some areas.
Even though some earphones or headphones let you hear some outside
sounds when listening at normal volume levels, they still can present a
traffic hazard.
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