Sony VAIO VGC-RM1 Series User Manual page 62

Notes on using the Bluetooth functionality
The data transfer rate varies, depending on the following conditions:
Obstacles, such as walls, located between devices
Distance between devices
Material used in walls
Proximity to microwaves and cordless telephones
Radio frequency interference and other environmental conditions
Device configuration
Type of software application
Type of operating system
Size of file being exchanged
Note that due to limitations of the Bluetooth standard, large files may occasionally be corrupted during continuous transfer
due to electromagnetic interference from the environment.
All Bluetooth devices must be certified to make sure that the applicable standard requirements are maintained. Even if
standards are met, individual device performance, specifications, and operation procedures can vary. Data exchange may
not be possible in all situations.
As general characteristics of Bluetooth technology, video and audio may go out of synchronization if you play videos on
your computer with audio output from the connected Bluetooth device.
The 2.4 GHz band, with which Bluetooth devices or wireless LAN devices work, is used by various devices. Bluetooth
devices use the technology to minimize the interference from other devices that use the same wave length. Simultaneous
use of the Bluetooth functionality and wireless communication devices, however, may cause radio interference and result
in poorer communication speeds and distances than the standard values.
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Using Your VAIO Computer