Additional information, Precautions, On bluetooth communication – Sony DR-BT22iK User Manual
Page 34
DR-BT22iK [GB] 3-280-122-11(1)
DR-BT22iK [GB] 3-280-122-11(1)
Precautions
Additional Information
The sensitivity of the Bluetooth
communication will improve by
turning the direction of the built-in
aerial to the connected Bluetooth
device.
The communication distance shortens
when the obstacles are between the
aerial of the connected device and this
product.
The following conditions may cause
noise, sound break or playback speed
change.
– When using inside the metal bag.
– When using inside the backpack or
shoulder bag.
– A device using 2.4 GHz frequency,
such as a wireless LAN device,
cordless telephone, or microwave
oven, is in use near this product.
Because Bluetooth devices and wireless
LAN (IEEE802.11 b/g) use the same
frequency, microwave interference may
occur and resulting in communication
speed deterioration, noise, or invalid
connection if this product is used near
a wireless LAN device. In such a case,
perform the following.
– Install this product and Bluetooth
device as near to each other as possible.
– If this product is used within about
10 meters (about 30 feet) of a wireless
LAN device, turn off the wireless
LAN device.
Microwaves emitting from a Bluetooth
device may affect the operation of
electronic medical devices. Turn off
this unit and other Bluetooth devices
in the following locations, as it may
cause an accident.
– where inflammable gas is present, in
a hospital, train, airplane, or a petrol
station
– near automatic doors or a fire
alarm
On Bluetooth communication
Bluetooth wireless technology
operates within a range of about 10
meters (about 30 feet). Maximum
communication range may vary
depending on obstacles (human body,
metal, wall, etc.) or electromagnetic
environment.
The transmitter
Limited performance
Optimal performance
Steel cabinet
The aerial of the headset is built into
the right housing as illustrated in the
dotted line.
Location of
built-in aerial
The aerial of the transmitter is shown
as illustrated in the dotted line.
Location of
built-in aerial