Panasonic Toughpad FZ-E1 Hearing Aid Compatibility Certification
Using hearing aids with mobile devices
When some wireless mobile devices are used near some hearing devices (hearing aids
and cochlear implants), users may detect a buzzing, humming, or whining noise. Some
hearing devices are more immune than others to this interference noise, and mobile
devices also vary in the amount of interference they generate. In the event of
interference you may want to consult your hearing aid supplier to discuss solutions.
The wireless telephone industry has developed ratings for some of their mobile devices,
to assist hearing device users in finding mobile devices that may be compatible with
their hearing devices. Not all mobile devices have been rated. Mobile devices that are
rated have the rating on their box or label located on the box.
The ratings are not guarantees. Results will vary depending on the user's hearing
device and hearing loss. If your hearing device happens to be vulnerable to interference,
you may not be able to use a rated mobile device successfully. Trying out the mobile
device with your hearing device is the best way to evaluate it for your personal needs.
M-Ratings: Mobile devices rated M3 or M4 are likely to generate less interference to
hearing devices than mobile devices that are not labeled. M4 is the better/higher of the
two ratings.
T-Ratings: Mobile devices rated T3 or T4 are likely to be more usable with a hearing
device's telecoil ("T-Coil Switch" or "Telephone Switch") than unrated mobile devices. T4
is the better/higher of the two ratings. (Note that the hearing aid telecoil must be
activated in order for it to function, and that not all hearing devices have telecoils in
them.)
Hearing devices may also be measured for immunity to this type of interference. Your
hearing device manufacturer or hearing health professional may help you find results
for your hearing device. The more immune your hearing aid is, the less likely you are to
experience interference noise from mobile devices.
The HAC rating and measurement procedure are described in the American National
Standards Institute (ANSI) C63.19 standard.
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