![background image](http://html.mh-extra.com/html/sony/cmt-sbt40d/cmt-sbt40d_operating-instructions-manual_420446036.webp)
36
GB
BLUETOOTH wireless
technology
BLUETOOTH wireless technology is a short-
range wireless technology linking digital
devices, such as personal computers and
digital still cameras. Using the BLUETOOTH
wireless technology, you can operate the
units involved within a range of about 10
meters.
The BLUETOOTH wireless technology is
commonly used between two devices, but a
single device can be connected to multiple
devices.
You do not need wires to get connected as
you do with a USB connection, and you do
not need to place the devices face to face as
you do with wireless infrared technology.
You can use the technology with one
BLUETOOTH device in your bag or pocket.
BLUETOOTH wireless technology is a global
standard supported by thousands of
companies. These companies produce
products that meet the global standard.
Supported BLUETOOTH version and profiles
Profile refers to a standard set of capabilities
for various BLUETOOTH product capabilities.
See “Specifications” (page 37) for details on
the supported BLUETOOTH version and
profiles.
Note
To use a BLUETOOTH device connected to this
system, the device must support the same
profile as this system. Note that the functions of
the BLUETOOTH device may be different
depending on the specifications of the device,
even if it has the same profile as this system.
Because of the properties of BLUETOOTH
wireless technology, playback on this system is
slightly delayed compared with audio playback
on the transmitting device.
Effective communication range
BLUETOOTH devices should be used within
approximately 10 meters (unobstructed
distance) of each other.
The effective communication range may
become shorter under the following
conditions.
When a person, metal object, wall or
other obstruction is between the
devices with a BLUETOOTH connection
Locations where a wireless LAN is
installed
Around microwave ovens that are in
use
Locations where other electromagnetic
waves occur
Effects of other devices
BLUETOOTH devices and wireless LAN
(IEEE802.11b/g) use the same frequency
band (2.4 GHz). When using your
BLUETOOTH device near a device with
wireless LAN capability, electromagnetic
interference may occur.
This could result in lower data transfer rates,
noise, or inability to connect. If this
happens, try the following remedies:
Try connecting this system and
BLUETOOTH mobile phone or
BLUETOOTH device when you are at
least 10 meters away from the wireless
LAN equipment.
Turn off the power to the wireless LAN
equipment when using your
BLUETOOTH device within 10 meters
Effects on other devices
The radio waves broadcast by this system
may interfere with the operation of some
medical devices. Since this interference may
result in malfunction, always turn off the
power on this system, BLUETOOTH mobile
phone and BLUETOOTH device in the
following locations:
In hospitals, on trains, and in airplanes
Near automatic doors or fire alarms
Note
This system supports security functions that
comply with the BLUETOOTH specification as a
means of ensuring security during
communication using BLUETOOTH technology.
However, this security may be insufficient
depending on the setting contents and other
factors, so always be careful when performing
communication using BLUETOOTH technology.
Sony cannot be held liable in any way for
damages or other loss resulting from
information leaks during communication using
BLUETOOTH technology.
BLUETOOTH communication is not necessarily
guaranteed with all BLUETOOTH devices that
have the same profile as this system.