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150 Health and Safety Information
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Health and Safety Information 151
• 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. By blocking background environment
noise, noise cancelling headphones should allow you to hear the music at lower
volumes than when using earbuds.
• 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.
You can obtain additional information on this subject from the following sources:
American Academy of Audiology
11730 Plaza American Drive, Suite 300
Reston, VA 20190
Voice:
1–800–222–2336
Email:
Internet:
www.audiology.org
National Institute on Deafness and Other Communication Disorders
National Institutes of Health
31 Center Drive, MSC 2320
Bethesda, MD 20892–2320
Voice:
1–301–496–7243
Email:
Internet:
www.cdc.gov/niosh/topics/noise
National Institute for Occupational Safety and Health
Hubert H. Humphrey Bldg.
200 Independence Ave., SW Washington, DC 20201
Voice:
1–800–35–NIOSH (1–800–356–4647)
Internet:
www.cdc.gov/niosh/topics/noise
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