LG Optimus Zone 2 Service Manual page 42

The amount of sound produced by a portable audio device
varies depending on the nature of the sound, the device, the
device settings and the headphones. You should follow some
commonsense recommendations when using any portable
audio device:
• Set the volume in a quiet environment and select the lowest
volume at which you can hear adequately.
• When using headphones, turn the volume down if you
cannot hear the people speaking near you or if the person
sitting next to you can hear what you are listening to.
• Do not turn the volume up to block out noisy surroundings.
If you choose to listen to your portable device in a noisy
environment, use noise-cancelling headphones to block out
back ground environmental noise.
• Limit the amount of time you listen. As the volume
increases, less time is required before your hearing could
be affected.
• Avoid using headphones after exposure to extremely loud
noises, such as rock concerts, that might cause temporary
hearing loss. Temporary hearing loss might cause unsafe
volumes to sound normal.
• Do not listen at any volume that causes you discomfort. If
you experience ringing in your ears, hear muffled speech or
experience any temporary hearing difficulty after listening
to your portable audio device, discontinue use and consult
your doctor.
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