● Any combined rating equal to five is considered normal
use.
● Any combined rating equal to four is considered usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you
will have a combined rating of six for "excellent use." This is
synonymous for T ratings.
More information about hearing aid compatibility may be
found at: www.fcc.gov, www.fda.gov, and
www.accesswireless.org.
Getting the Best Hearing Device
Experience With Your Phone
To further minimize interference, move the phone around to
find the point with least interference.
26
Important Safety Information
Caring for the Battery
Protecting Your Battery
The guidelines listed below help you get the most out of your
battery's performance.
● Recently there have been some public reports of wireless
phone batteries overheating, catching fire, or exploding.
It appears that many, if not all, of these reports involve
counterfeit or inexpensive, aftermarket-brand batteries
with unknown or questionable manufacturing standards.
Use only manufacturer-approved batteries and
accessories. Buying the right batteries and accessories is
the best way to ensure they're genuine and safe.
● Only use the battery with a qualified charger. Use of an
unqualified battery charger may present a risk of fire,
explosion, leakage, or other hazard. If you are unsure
about whether a charger is qualified, contact customer
support.