Important Safety InformationSection 4A. Important Safety Information 171Disposal of Lithium Ion (Li-Ion) BatteriesDo not handle a damaged or leaking Li-Ion battery as you canbe burned.For safe disposal options of your Li-Ion batteries, contact yournearest Sprint authorized service center.Special Note: Be sure to dispose of your battery properly. Insome areas, the disposal of batteries in household or businesstrash may be prohibited.Radio Frequency (RF) EnergyUnderstanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver. Whenit’s turned on, it receives and transmits radio frequency (RF)signals. When you use your phone, the system handling yourcall controls the power level. This power can range from 0.006watt to 0.2 watt in digital mode.Knowing Radio Frequency SafetyThe design of your phone complies with updated NCRPstandards described below.In 1991–92, the Institute of Electrical and Electronics Engineers(IEEE) and the American National Standards Institute (ANSI)joined in updating ANSI’s 1982 standard for safety levels withrespect to human exposure to RF signals.More than 120 scientists, engineers and physicians fromuniversities, government health agencies and industriesdeveloped this updated standard after reviewing the availablebody of research. In 1993, the Federal CommunicationsCommission (FCC) adopted this updated standard in aregulation. In August 1996, the FCC adopted hybrid standardconsisting of the existing ANSI/IEEE standard and theguidelines published by the National Council of RadiationProtection and Measurements (NCRP).Body-Worn OperationTo maintain compliance with FCC RF exposure guidelines, ifyou wear a handset on your body, use the Sprint supplied orapproved carrying case, holster or other body-worn accessory.If you do not use a body-worn accessory, ensure the antenna isat least 7/16 inch (1.5 centimeters) from your body whentransmitting. Use of non-Sprint-approved accessories mayviolate FCC RF exposure guidelines.For more information about RF exposure, visit the FCC Website at www.fcc.gov.M520_Sprint.book Page 171 Thursday, September 18, 2008 12:34 PM