F350 User Manual
The antenna(s) used for this transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
Use Your Phone with a Hearing Aid Device
Your F350 device is compliant with the FCC and IC Hearing Aid Compatibility (HAC)
requirements.
When some wireless phones 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 phones
also vary in the amount of interference they generate. The wireless telephone
industry has developed ratings for some of their mobile phones to assist hearing-
device users in finding phones that may be compatible with their hearing devices. Not
all phones have been rated. Phones that have been rated have a label on the box.
Your F350 has been tested for hearing aid device compatibility. Your F350 has been
tested for hearing aid device compatibility and has an M4 and/or T3 rating.
These ratings are not guaranteed. Results will vary, depending on the level of
immunity of your hearing device and the degree of your hearing loss. If your hearing
device happens to be vulnerable to interference, you may not be able to use a rated
phone successfully. 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 with hearing devices than phones that are not labeled. M4
is the better/higher of the two ratings. T-Ratings: Phones rated T3 or T4 meet FCC
requirements and are likely to be more usable with a hearing device’s telecoil (“T
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