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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 include low power and low cost.  The specification in
Bluetooth defines a uniform structure for a wide range of devices to communicate and connect with one another.

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.

Specifications
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.

Spectrum
The Bluetooth technology operates in the industrial and scientific band at 2.4 to 2.485 GHz, using a spread spectrum, frequency hopping signal.

Interference
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.

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The technology of Bluetooth will take small area networking to the next level by removing the need for user intervention and help keep transmission power very low to preserve battery power.  Each transmission signal to and from your cellular phone will use just 1 mw of power, giving you plenty of space on your battery to talk.

Bluetooth is a networking standard that will work on two levels:
1.  It will provide agreement at the physical level, as Bluetooth is a radio frequency
standard.
2.  It will provide agreement at the level of protocol, where products will have to agree
on when bits are sent, how many are sent,  and how the parties in conversation can be sure the message recieved is the same one that was sent.

The major draws to Bluetooth is the fact that  it’s wireless, inexpensive, and automatic. There are other ways to get around wires, including infrared.  Infrared uses light waves of a lower frequency than the human eye can, and is normally used in television remote controls.

The technology of Bluetooth is intended to get around the problems that normally come with infrared systems.  The 1.0 older standard of Bluetooth has a max transfer speed of 1 MB a second, while the 2.0 Bluetooth standard can manage up to 3.0 MB a second.  To make things better, 2.0 is compatible with 1.0 devices.

As a solution to wireless, Bluetooth will eliminate the need for messy cords, keeping
everything nice and neat.  It’s perfect for those who like to talk on cell phones, as you no
longer need to hold the phone next to your ear – which is great for those who travel a
lot.

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