User guide
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More Information
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• 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 background 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.
Caution: Avoid Potential Hearing Loss
Prolonged exposure to loud sounds (including music) is the
most common cause of preventable hearing loss. Some
scientific research suggests that using portable audio devices,
such as portable music players and cellular telephones,
at high volume settings for long durations, may lead to
permanent noise-induced hearing loss. This includes the use
of headphones (including headsets, earbuds, and Bluetooth®
or other wireless devices). Exposure to very loud sound has
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
other potential hearing problems varies.
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: