LG X charge US601 User Manual page 116

wireless devices be compatible with hearing-aids. The intent of the HAC Act is
to ensure reasonable access to telecommunications services for persons with
hearing disabilities.
While some wireless 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 devices also vary in the amount of interference they generate.
The wireless telephone industry has developed a rating system for wireless
devices, to assist hearing device users to find devices that may be compatible
with their hearing devices. Not all devices have been rated. Devices that are
rated have the rating on their box or a label located on the box.
The ratings are not guaranteed. 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 device
successfully. Trying out the device with your hearing device is the best way to
evaluate it for your personal needs.
M-Ratings: Devices rated M3 or M4 meet FCC requirements and are likely
to generate less interference to hearing devices than devices that are not
labeled. M4 is the better/higher of the two ratings.
T-Ratings: Devices rated T3 or T4 meet FCC requirements and are likely
to generate less interference to hearing devices than devices that are not
labeled. T4 is the better/ higher of the two ratings.
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 device rating values are then added together. A sum of 5 is
considered acceptable for normal use. A sum of 6 is considered for best use.
In the above example, if a hearing aid meets the M2 level rating and the
wireless device 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 device. "Normal usage" in this
context is defined as a signal quality that' s acceptable for normal operation.
For Your Safety
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