Information for Optical Pointing Devices Only
User-observable light is 15 microwatts in normal operation.
This product has been tested to comply with International Standard
IEC 60825-1:1993/A2:2001.
This product uses LEDs that are inherently Class 1.
The Microsoft hardware device(s) that accompanies this software can radiate radio frequency (RF)
energy. If not installed and used in strict accordance with the instructions given in this printed
documentation, the device may cause harmful interference with other radio-communications
devices (for example AM/FM radios, televisions, baby monitors, cordless phones, etc.). There is,
however, no guarantee that RF interference will not occur in a particular installation.
To determine if your hardware device is causing interference to other radio-communications devices,
disconnect the device from your computer. If the interference stops, it was probably caused by the
device. If the interference continues after you disconnect the hardware device, turn the computer
off and then on again. If the interference stopped when the computer was off, check to see if one
of the input/output (I/O) devices or one of the computer's internal accessory boards is causing the
problem. Disconnect the I/O devices one at a time and see if the interference stops.
If this hardware device does cause interference, try the following measures to correct it:
• Relocate the antenna of the other radio-communications device (for example AM/FM Radios,
televisions, baby monitors, cordless phones, and so forth) until the interference stops.
• Move the hardware device farther away from the radio or TV, or move it to one side or the other of
the radio or TV.
• Plug the computer into a different power outlet so that the hardware device and radio or TV are
on different circuits controlled by different circuit breakers or fuses.
• If necessary, ask your computer dealer or an experienced radio-TV technician for more
suggestions. For more information about interference issues, go to the FCC website at:
http://www.fcc.gov/cgb/consumerfacts/interference.html
You can also call the FCC at 1-888-CALL FCC to request Interference and Telephone Interference fact
sheets.
Microsoft Corporation; One Microsoft Way; Redmond, WA 98052-6399; U.S.A.
United States: (800) 426-9400
Canada: (800) 933-4750
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4/22/04, 6:45 PM