Troubleshooting Guide
Regulatory Information | 47 46 | Regulatory Information
Required Hearing Aid Information
The following additional information is provided in compliance with U�S� Food 
and Drug Administration (FDA) regulations:
 WARNING TO HEARING AID DISPENSERS  
A hearing aid dispenser should advise a prospective hearing aid user to 
consult promptly with a licensed physician (preferably an ear specialist) before 
dispensing a hearing aid if the hearing aid dispenser determines through inquiry, 
actual observation or review of any other available information concerning the 
prospective user that the prospective user has any of the following conditions:
i�  Visible congenital or traumatic deformity of the ear�
ii�  History of active drainage from the ear within the previous 90 days�
iii�  History of sudden or rapidly progressive hearing  
loss within the previous 90 days�
iv�  Acute or chronic dizziness�
v�  Unilateral hearing loss of sudden or recent onset within the previous 90 
days�
vi�  Audiometric air-bone gap equal to or greater than  
15 decibels at 500 Hertz (Hz), 1,000 Hz and 2,000 Hz�
vii�  Visible evidence of significant cerumen accumulation or a foreign body in 
the ear canal�
viii�  Pain or discomfort in the ear�
IMPORTANT NOTICE FOR PROSPECTIVE  
HEARING AID USERS 
Good health practice requires that a person with a hearing loss have a medical 
evaluation by a licensed physician (preferably a physician who specializes in 
diseases of the ear) before purchasing a hearing aid� Licensed physicians who 
specialize in diseases of the ear are often referred to as otolaryngologists, 
otologists or otorhynolaringologists� The purpose of the medical evaluation 
is to assure that all medically treatable conditions that may affect hearing are 
identified and treated before the hearing aid is purchased�
Following the medical evaluation, the physician will give you a written statement 
that states that your hearing loss has been medically evaluated and that you may 
be considered a candidate for a hearing aid�
The physician will refer you to an audiologist or hearing aid dispenser, as 
appropriate, for a hearing aid evaluation�
The audiologist or hearing aid dispenser will conduct a hearing aid evaluation 
to assess your ability to hear with and without a hearing aid� The hearing aid 
evaluation will enable the audiologist or dispenser to select and fit a hearing aid 
to your individual needs�
If you have reservations about your ability to adapt to amplification, you should 
inquire about the availability of a trial-rental or purchase-option program� Many 
hearing aid dispensers now offer programs that permit you to wear a hearing aid 
for a period of time for a nominal fee after which you may decide if you want to 
purchase the hearing aid�
Federal law restricts the sale of hearing aids to those individuals who have 
obtained a medical evaluation from a licensed physician� Federal law permits a 
fully informed adult to sign a waiver statement declining the medical evaluation 
for religious or personal beliefs that preclude consultation with a physician� The 
exercise of such a waiver is not in your best health interest and its use is strongly 
discouraged�
A hearing aid will not restore normal hearing and will not prevent or improve a 
hearing impairment resulting from organic conditions� Use of a hearing aid is 
only part of hearing habilitation and may need to be supplemented by auditory 
training and instruction in lip reading� In most cases infrequent use of a hearing 
aid does not permit a user to attain full benefit from it� Special care should be 
exercised in selecting and fitting a hearing aid whose maximum sound pressure 
level exceeds 132 decibels because there may be risk in impairing the remaining 
hearing of the hearing aid user�
Some hearing aid users have reported a buzzing sound in their hearing aid 
when they are using mobile phones, indicating that the mobile phone and 
hearing aid may not be compatible� According to the ANSI C63�19 standard 
(ANSI C63�19-2007 American National Standard Methods of Measurement of 
Compatibility Between Wireless Communications Devices and Hearing Aids), 
the compatibility of a particular hearing aid and mobile phone can be predicted 
by adding the rating for the hearing aid immunity to the rating for the mobile 
phone emissions� For example, the sum of a hearing aid rating of 2 (M2/T2) and 
a telephone rating of 3 (M3/T3) would result in a combined rating that equals 
at least 5 would provide “normal use”; a combined rating of 6 or greater would 
indicate “excellent performance”� See the Product Card or Quick Start Guide 
included with your hearing aid for the exact M/T rating of your hearing aid�
CHILDREN WITH HEARING LOSS 
In addition to seeing a physician for a medical evaluation, a child with a hearing 
loss should be directed to an audiologist for evaluation and rehabilitation since 
hearing loss may cause problems in language development and the educational 
and social growth of a child� An audiologist is qualified by training and experience 
to assist in the evaluation and rehabilitation of a child with a hearing loss�










