The technology of Bluetooth wireless is a short range communications method intended to replace
the cables that connect portable or fixed devices while maintaining the highest levels of security.
The key features offered by Bluetooth includelow power and low cost. The specification in
Bluetooth defines a uniform structure for a wide range of devices to communicate and connect with
The technology behind Bluetooth has achieved global satisfaction such as enabled devices, almost
everywhere in the world. Bluetooth devices will connect and communicate without wires through
short range and networks known as piconets.
Each device will simultaneously communicate with up to seven other devices within a single piconet,
meaning that each device can also belong to several piconets simultaneously. The piconets
are dynamically established as Bluetooth enabled devices enter and leave the proximity of radio.
A fundamental to Bluetooth strength is the ability to handle both data and voice transmissions
simultaneously. This will enable users to enjoy varieties of innovative solutions such as hands
free talking, printing and fax capabilities, and other applications.
Unlike other standards of wireless, the Bluetooth specification gives product developers both a
link layer and application layer definitions,which will help support data and voice applications.
The Bluetooth technology operates in the industrial and scientific band at 2.4 to 2.485 GHz, using a
spread spectrum, frequency hopping signal.
The adaptive frequency hopping of Bluetooth technology was designed to reduce interference
between wireless technologies that share the 2.4 GHz spectrum. Adaptive frequency hopping (AFH)
works well within the spectrum to take full advantage of the frequency available.
AFH hopping allows for more efficient transmission within the spectrum, which provides users with
greater performance even if they are using other technologies along with Bluetooth.