Everything You Need to Know about Cell Phones and
Digital Hearing Aids
By Susan Homitz
Editor: It's becoming ever easier for people with hearing loss to find
a cell phone that works for them. But it still takes a bit of research and
effort. Here's Susan Homitz of America Hears with her thoughts on the
topic.
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Today, almost everyone has a cell phone - young and old - and it can be
a challenge for users of digital hearing aids to know how to handle their
phones properly. Issues such as feedback and distortion can arise, as can
conflicts between cell phone and hearing aid technology, and the hearing
aid user may be tempted to throw both the hearing aids and the cell phone
out the window. But the truth is that cell phone and hearing aid
technology can coexist without major problems - it just takes a little
research.
The Issues with Digital Hearing Aids and Cell Phones
For users of digital hearing aids, cell phones can bring a host of
problems. Cell phones pick up radio frequency (RF) interference, which can
cause buzzing and other irritating sounds. These sounds then are picked up
by hearing aids, making hearing the actual conversation on the cell phone
extremely difficult. Digital hearing aids with telecoils can also pick up
magnetic interference from the backlight, display, and keypad of the
phone. And conflicts with cell phone and hearing aid technology may also
cause general feedback or distortion. For these reasons, it is important
to make sure that you purchase both the right cell phone and the right
hearing aid to eliminate these issues as much as possible.
Find the Right Cell Phone
If you use digital hearing aids and do not already have a cell phone,
you will want to purchase one that will give you the least amount of
trouble. In July 2003, the FCC modified its legislation and required all
cell phone makers to create models that are compatible with digital
hearing aids, which makes things easier for hearing aid users but still
requires a certain amount of research before a purchase is made. In
addition, if you want to buy an older or used cell phone, you will need to
know what to look for to ensure that the phone will work with the hearing
aid technology you have.
Cell phones have ratings that can help you determine if the model you
are considering will work with certain hearing aid technology. Look for a
cell phone that has an M3 or M4 rating if you are using it with a hearing
aid microphone. If you are using a telecoil, you will need a cell phone
that has a T3 or T4 rating. Ideally, your phone will have both of these
ratings. In addition, you want to make sure your cell phone has CDMA
transmission technology. Most major cell phone carriers offer models that
have features that do not cause issues with hearing aid technology.
The best cell phones for users of digital hearing aids are flip phones,
rather than flat models. These phones allow you to better position the
receiver in relation to your hearing aid. You should make also sure that
you have the option to turn off the backlight and the display of your cell
phone as these can both cause interference with your hearing aid
technology.
If you use digital hearing aids with telecoils, you can also purchase a
neck loop that can help with cell phone interference. Many may already be
familiar with this item, which is occasionally used to help those with
hearing impairment at many entertainment venues. You can plug your neck
loop into the headset jack of your cell phone to eliminate much of the
annoying buzzing sounds caused by the conflict with the hearing aid
technology.
Finally, it is best if you can purchase your cell phone in person at a
store, rather than over the Internet. That way, you can test it out with
your hearing aid and make sure that it will work for you. And just like
with digital hearing aids, cell phones usually come with a trial period.
If you take your cell phone home and find that it is in fact not
compatible with your hearing aid technology, you can usually return it for
a refund and try another model until you find one that works for you.
Find the Right Digital Hearing Aids
Some types of hearing aid technology will work better with cell phones
than others. If using a cell phone is important to you, then you will need
to make sure that you choose one of these models. Look for digital hearing
aids that have a built-in RF immunity if at all possible. This will
eliminate many, if not all, of the issues you may have with a cell phone.
If in doubt, ask the manufacturer about not only RF immunity but also if
the company's digital hearing aids have been tested with cell phones.
Use the Cell Phone Properly
If you have a behind-the-ear or in-the-ear hearing aid with a telecoil,
you need to make sure that you position your cell phone near the telecoil
rather than on your ear. If you have a smaller hearing aid, such as a CIC,
you will simply need to position the phone so that there is space between
the aid and the phone receiver, which is easier to do with the
aforementioned flip phones rather than flat phones. Finally, it may be
easiest to purchase a cell phone that has a speaker option. That way you
do not need to place the phone near your ear at all, virtually eliminating
all hearing aid technology conflicts up front.
Conclusion
Digital hearing aid users may have found in the past that they could
not hear properly when using a cell phone, and may have given up the use
of cell phones in frustration. However, with today's hearing aid
technology and a little bit of research, one can find the right
combination of hearing aid model and cell phone model that will allow
virtually problem-free use. Above all, make sure that you test out any
cell phone model with your hearing aid before you make a final purchase to
ensure that you will be pleased with the setup for the long term - or at
least until the next wave of hearing aid technology is released.
About the Author
Susan Homitz is an audiologist for America Hears, a company that
manufactures and distributes digital hearing aids over the Internet. At
America Hears, she helps customers with the fitting of their hearing aids
and also counsels patients on the company's product line and software.
Homitz has 19 years of experience as an audiologist and received her
master's degree in 1998 from Gallaudet University in Washington, D.C. For
more information about America Hears, please visit www.americahears.com.