Sony SRS-X77 Help Manual page 258

Help Guide
How to Use
Personal Audio System
SRS-X77
What is BLUETOOTH wireless technology?
BLUETOOTH wireless technology is a short-range wireless technology that enables wireless data communication
between digital devices, such as a computer and digital camera. BLUETOOTH wireless technology operates within a
range of about 10 m (about 30 ft).
Connecting between only two devices is common, but some devices can be connected to multiple devices at the same
time.
You do not need to use a cable for connection, nor is it necessary for the devices to face one another, such is the case
with infrared technology. For example, you can use such a device in a bag or pocket.
BLUETOOTH standard is an international standard supported by thousands of companies all over the world, and used
worldwide.
Maximum communication range
The maximum communication range may shorten under the following conditions.
There is an obstacle such as a person, metal, or wall between the speaker and BLUETOOTH device.
A wireless LAN device is in use near the speaker.
A microwave oven is in use near the speaker.
A device that generates electromagnetic radiation is in use near the speaker.
Interference from other devices
Because BLUETOOTH devices and wireless LAN (IEEE802.11b/g/n) use the same frequency, microwave interference
may occur and resulting in communication speed deterioration, noise, or invalid connection if the speaker is used near a
wireless LAN device. In such a case, do the following.
Use the speaker at least 10 m (about 30 ft) away from the wireless LAN device.
If the speaker is used within 10 m (about 30 ft) of a wireless LAN device, turn off the wireless LAN device.
Interference to other devices
Microwaves emitting from a BLUETOOTH device may affect the operation of electronic medical devices. Turn off the
speaker 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 gas station
near automatic doors or a fire alarm
Note
To be able to use the BLUETOOTH function, the BLUETOOTH device to be connected requires the same profile as
the system's.
Note also that even when the same profile exists, devices may vary in function depending on their specifications.