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Trying out the phone with your hearing device is the best way to evaluate it for your personal needs.
M-Ratings: Phones rated M3 or M4 meet FCC requirements and are likely to generate less interference to
hearing devices than phones that are not labeled. M4 is the better/higher of the two ratings. Touch by HTC™ is
rated M3.
Please power off the Bluetooth function while using hearing aid devices with your Touch by HTC™.
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.
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) C63.19 standard.
For information about hearing aids and digital wireless phones
FCC Hearing Aid Compatibility and Volume Control:
http://www.fcc.gov/cgb/dro/hearing.html
Gallaudet University, RERC:
http://tap.gallaudet.edu/DigWireless.KS/DigWireless.htm
SAR Information
SAR: 1.250 W/kg @1g (USA)
THIS MODEL DEVICE MEETS THE GOVERNMENT’S REQUIREMENTS FOR EXPOSURE TO RADIO WAVES.
For body-worn operation, this phone has been tested and meets the FCC RF exposure guidelines when used with
the High Tech Computer Corp. accessories supplied or designated for this product. Use of other accessories may
not ensure compliance with the FCC RF exposure guidelines.
Your wireless mobile CDMA phone is a radio transmitter and receiver. It is designed and manufactured not
to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications
Commission of the U.S. Government. These limits are part of comprehensive guidelines and establish permitted
levels of RF energy for the general population. The guidelines are based on the safety standards previously set by
both U.S. and international standards bodies:
American National Standards Institute (ANSI) IEEE. C95.1-1992.
National Council on Radiation Protection and Measurement (NCRP). Report 86. 1986.
International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1996.
Ministry of Health (Canada), Safety Code 6. The standards include a substantial safety margin designed to
assure the safety of all persons, regardless of age and health.
Appendix 159