User's Manual

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.

Cell phone

Some hearing aid users have reported a buzzing sound in their

hearing aids when they are using cell phones, indicating that the

cell phone and hearing aid may not be compatible. According to

the ANSI C63.19 standard (ANSI C63.19-2006 American National

Standard Methods of Measurement of Compatibility Between

Wireless Communications Devices and Hearing Aids), the

compatibility of a particular hearing aid and cell phone can be

predicted by adding the rating for the hearing aid immunity to the

rating for the cell phone emissions. For example, the sum of the

hearing aid rating of 2 (M2) and a telephone rating of 3 (M3) would

result in a combined rating of 5. Any combined rating that equals

at least 5 would provide “normal use”; a combined rating of 6 or

greater would indicate “excellent performance.”

The immunity of this hearing aid is at least M2/T2. The equipment

performance measurements, categories and system classiﬁcations

are based upon the best information available but cannot

guarantee that all users will be satisﬁed.

Note: The performance of the individual hearing aids may vary

with individual cell phones. Therefore, please try this hearing

aid with your cell phone or, if you are purchasing a new phone,

please be sure to try it with your hearing aid prior to purchase.

For additional guidance, please ask your hearing healthcare

professional for the booklet entitled “Hearing aid compatibility

with digital wireless cell phones.”