HTC EVO 3D User Manual page 295

Please power off the Bluetooth function while using
hearing aid devices with your PG86100.
Hearing devices may
also be rated. Your
hearing device
manufacturer or
hearing health
professional may help
you find this rating.
Higher ratings mean
that the hearing device
is relatively immune to
interference noise.
The hearing aid and wireless phone rating values are
then added together. A sum of 5 is considered
acceptable for normal use. A sum of 6 is considered
for better use. A sum of 8 is considered for best use. In
the above example, if a hearing aid meets the M2 level
rating and the wireless phone meets the M3 level
rating, the sum of the two values equal M5. This should
provide the hearing aid user with "normal usage" while
using their hearing aid with the particular wireless
phone. "Normal usage" in this context is defined as a
signal quality that is acceptable for normal operation.
This methodology applies equally for T ratings. The M
mark is intended to be synonymous with the U mark.
The T mark is intended to be synonymous with the UT
mark. The M and T marks are recommended by the
Alliance for Telecommunications Industries Solutions
(ATIS). The U and UT marks are referenced in Section
20.19 of the FCC Rules. The HAC rating and
measurement procedure are described in the
American National Standards Institute (ANSI) C63. 1 9
standard.
This phone has been tested and rated for use with
hearing aids for some of the wireless technologies that
it uses. However, there may be some newer wireless
technologies used in this phone that have not been
tested yet for use with hearing aids. It is important to try
the different features of this phone thoroughly and in
different locations, using your hearing aid or cochlear
implant, to determine if you hear any interfering noise.
Consult your service provider or the manufacturer of
this phone for information on hearing aid compatibility.
If you have questions about return or exchange
policies, consult your service provider or phone retailer.
4A. Important Safety Information 283