User's Manual

E-34
For more information about hearing aids and digital wireless
phones:
• FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
• Hearing Loss Association of America
http://www.hearingloss.org/learn/cellphonetech.asp
• CTIA
http://www.accesswireless.org/hearingaid/
• Gallaudet University, RERC
http://tap.gallaudet.edu/voice
k 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