ZTE Corporation ZTEMF668 ユーザーズマニュアル

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RF exposure guidelines when used with the ZTE accessories supplied or
designated for this product. Use of other accessories may not ensure
compliance with FCC RF exposure guidelines. While there may be differ-
ences between the SAR levels of various phones and at various positions.
In all cases, products are designed to be within the guidelines.
FCC has granted an Equipment Authorization for this model phone with all
reported SAR levels evaluated as in compliance with the FCC RF expo-
sure guidelines. Additional information on Specific Absorption Rates (SAR)
can be found on the Cellular Telecommunications & Internet Association
(CTIA) web site: http://www.phonefacts.net or the Canadian Wireless
Telecommunications Association (CWTA) web site: http://www.cwta.ca.
In the United States and Canada, the SAR limit for mobile phones used by
the public is 1.6watts/kg (w/kg) average 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.
1.4 System Requirements
The USB Modem supports any PC or MAC system using the USB 2.0
interface and operating systems listed below:
Operating System:Windows 2000 / XP / Vista / 7, and MAC OS X 10.
4 and above
Recommended Configuration:
CPU          
1GHz Pentium or above
Hard Disk   
20MB or above available
RAM         
512M or above
The performance of the modem may be reduced if the configuration is
below the recommended requirement. 
 USB Modem Introduction