Samsung SPH-M840 Online User's Manual page 167

• 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: (800) 222-2336
Email: info@audiology.org
Internet:
http://www.audiology.org/Pages/
default.aspx
158 2C. Settings
National Institute on Deafness and
Other Communication Disorders
National Institutes of Health
31 Center Drive, MSC 2320
Bethesda, MD 20892-2320
Email: nidcdinfo@nih.gov
Internet:
http://www.nidcd.nih.gov/
National Institute for Occupational
Safety and Health (NIOSH)
395 E Street, S.W., Suite 9200
Patriots Plaza Building
Washington, DC 20201
Voice: 1-800-35-NIOSH
(1-800-356-4674)
1-800-CDC-INFO
(1-800-232-4636)
Outside the U.S. 513-533-8328