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Introduction 41
Before Use
• The frequency band used by these devices is the same band
that is used by microwave ovens, wireless devices used in
factory production lines for identifying moving objects
(license required), special low output wireless devices
(license not required), amateur radios (license required), and
other industrial, scientific and medical devices. (The 3 types
of wireless devices above are hereafter called “other wireless
devices”.) When using a Bluetooth-connected phone, check
whether “other wireless devices” are used nearby. If the
Bluetooth-connected phone causes harmful radio wave
interference in “other wireless devices”, immediately move
the phone to a different location to stop the wireless
interference. The frequency band used by Bluetooth-
connected phones is the 2.4 GHz band. T
he FH-SS
modulation scheme is used. The estimated distance in which
interference may occur is less than 10 m. The band used by
Bluetooth-connected phones is the full band, which helps
avoid interference with the band used by devices that identify
moving objects.
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