User Manual

68
Do not listen at any volume that
causes you discomfort. If you
experience ringing in your ears,
if speech sounds muffled, 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
Phone: (800) 222-2336 or 703-790-8466
Email: infoaud@audiology.org
Internet:

National Institute on Deafness and Other
Communication Disorders
Phone: 800-241-1044 or TTY @
800-241-1055
Email: nidcdinfo@nidcd.nih.gov
Internet: 
National Institute for Occupational Safety
and Health (NIOSH)