User's Manual
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T-Ratings: Phones rated T3 or T4 meet FCC requirements and are likely to generate less interference to hearing
devices than phones 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
phone 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 example to the above, 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’s 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.
When you're talking on a cell phone, it's recommended that you turn the BT (Bluetooth) mode off for HAC.
IC Notice
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two
conditions:
1) this device may not cause interference, and
2) this device must accept any interference, including interference that may cause undesired operation of the
device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible
d'en
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.