What is Bluetooth wireless technology?
Bluetooth technology is how mobile phones, computers, and personal digital assistants (PDAs), can be easily interconnected using a short-range wireless connection. Using this technology, users can have all mobile and fixed computer devices be totally coordinated.

How is Bluetooth used?
Basically, Bluetooth is a radio frequency and was developed as an alternative for cable based technology. Apart from the mobile phones, computers and PDA’s, Bluetooth can also replace cabling in a more static environment i.e. between desktop computers and printers. A device has to be Bluetooth enabled (i.e. contain a Bluetooth chip) to be able to use a Bluetooth connection. The key features of Bluetooth technology are robustness, low power, and low cost. The specification defines a uniform structure for a wide range of devices to connect and communicate with each other. A fundamental Bluetooth wireless technology strength is to simultaneously handle both data and voice transmissions, which enables users to enjoy variety of innovative solutions such as a hands-free headset for voice calls, printing and fax capabilities, and synchronizing PDA, laptop, and mobile phone applications to name a few.

Where did the name Bluetooth come from?
The heart of the Bluetooth brand identity is the name “Bluetooth” which refers to the Danish king Harald Blatand - or Harold Bluetooth in English. Even the Bluetooth logo was derived/ designed based on the initials of Danish King ‘H’ and ‘B’. He had been influential in uniting his part of world - just as the technology is designed to allow collaboration between differing industries.

What is the range of Bluetooth?
Bluetooth devices can be in 3 different power classes: Class 3: The lowest power, the max. range of this is 10m (30 feet) Class 2: Max range is about 50m (150ft) Class 1: Max range is about 100m (300ft) These ranges can be affected by environmental conditions i.e. furniture, walls, people so ranges can easily be reduced.

What is the speed of Bluetooth?
Bluetooth transfers data at a rate of 721 Kbps, which is from three to eight times the average speed of parallel and serial ports, respectively.

How secure is Bluetooth?
A false impression on Bluetooth technology is presently doing rounds is that all Bluetooth devices can connect to any other device and browse the information on it. The basic security of Bluetooth technology is that no device can access other compatible device without the permission of the user. Bluetooth security has various levels of authentication including pin code entry and up to 128-bit encryption.

Where can I find more information on Bluetooth?
www.bluetooth.com is the official website for Bluetooth and do refer the same for more information.

Where can I get Bluetooth specification? Is it license free?
Bluetooth specification can be downloaded from www.bluetooth.com which has more comprehensive information about Bluetooth.com and its SIG. It is totally free and no license is required to use it.