Kyocera S14 - Manual (Page 9)

User Guide for the Kyocera S14 Opal phone ix
* In the United States and Canada, the SAR limit for mobile phones used
by the public is 1.6 watts/kg (W/kg) averaged over one gram of tissue. The
standard incorporates a substantial margin of safety to give additional
protection for the public and to account for any variations in measurements.
Caution
The user is cautioned that changes or modifications not expressly
approved by the party responsible for compliance could void the warranty
and user’s authority to operate the equipment.
Warning
Use only Kyocera approved accessories with Kyocera phones. Use of
any unauthorized accessories may be dangerous and will invalidate the
phone warranty if said accessories cause damage or a defect to the
phone.
Optimize your phone’s performance
Use the guidelines on see page 3 to learn how to optimize the
performance and life of your phone, antenna, and battery.