User Guide

Health and Safety
Health and Safety 169
also been associated in some studies with tinnitus (a ringing in the ear),
hypersensitivity to sound, and distorted hearing. Individual susceptibility to
noise induced hearing loss and potential hearing problem varies. Additionally,
the amount of sound produced by a portable audio device varies depending on
the nature of the sound, the device settings, and the headphones that are used.
As a result, there is no single volume setting that is appropriate for everyone or
for every combination of sound, settings, and equipment.
You should follow some common sense recommendations when using any
portable audio device:
• Always turn the volume down before plugging the earphones into an audio
source.
• Set the volume in a quiet environment and select the lowest volume at
which you can hear adequately.
• Be aware that you can adapt to higher volume settings over time, not
realizing that the higher volume may be harmful to your hearing.
• 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