388 Section 8A: Important Safety Information
ⅷ Any combined rating equal to four is considered usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you have a combined rating of six for
“best use.” The same applies for T ratings.
Sprint further suggests that you experiment with multiple phones (even those not labeled
M3/T3 or M4/T4) while in the store to find the one that works best with your hearing aid
device. If you experience interference or find the quality of service unsatisfactory after
purchasing your device, promptly return it to the store within 30 days of purchase. With the
Sprint 30-day Risk-Free Guarantee, you may return the device within 30 days of purchase for
a full refund, and you will only be responsible for charges based on your actual usage.
Getting the Best Hearing Device Experience With Your Treo
To further minimize interference:
ⅷ There is usually less interference on the microphone setting than on the telecoil setting.
ⅷ Set the phone’s screen and keyboard backlight settings to ensure the minimum time
interval. See “Viewing and Optimizing Power Settings” on page 338 for instructions.
ⅷ Move the phone around to find the point with the least interference.
For information on selecting HAC settings, see “Selecting Your HAC Settings” on page 105.
Caring for the Battery
Protecting Your Battery
The following guidelines will help you get the most out of your battery’s performance:
ⅷ 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. Sprint is not aware of similar problems with Treo smart devices
resulting from the proper use of batteries and accessories approved by Sprint or by the
manufacturer of your phone. Use only batteries and accessories that have been approved
by Sprint or by the manufacturer of your Treo, and that are found at Sprint Stores or
