Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances ( using short-wavelength radio transmissions in the ISM band from 2400 – 2480 MHz ) from fixed and mobile devices, creating personal area networks ( PANs ) with high levels of security.

The word " Bluetooth " is an anglicised version of the Scandinavian Blåtand / Blåtann, the epithet of the tenth-century king Harald I of Denmark and parts of Norway who united dissonant Danish tribes into a single kingdom.

The implication is that Bluetooth does the same with communications protocols, uniting them into one universal standard.

The Bluetooth logo is a bind rune merging the Younger Futhark runes 8px ( Hagall ) ( ᚼ ) and 8px ( Bjarkan ) ( ᛒ ), Harald's initials.

The combination of these ( BR and EDR ) modes in Bluetooth radio technology is classified as a " BR / EDR radio ".

Bluetooth is a packet-based protocol with a master-slave structure.

Bluetooth is a standard wire-replacement communications protocol primarily designed for low power consumption, with a short range ( power-class-dependent, but effective ranges vary in practice ; see table below ) based on low-cost transceiver microchips in each device.

They also demonstrated the first Bluetooth PIN and Linkkeys cracker, which is based on the research of Wool and Shaked.

Maximum power output from a Bluetooth radio is 100 mW, 2. 5 mW, and 1 mW for Class 1, Class 2, and Class 3 devices respectively, which puts Class 1 at a lower level than mobile phones, and the other two classes much lower.

The Bluetooth Innovation World Cup, a marketing initiative of the Bluetooth Special Interest Group ( SIG ), is an international competition encouraging the development of innovations for applications leveraging the Bluetooth low energy wireless technology in sports, fitness and health care products.

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The Bluetooth Special Interest Group ( SIG ) is the body that oversees the development of Bluetooth standards and the licensing of the Bluetooth technologies and trademarks to manufacturers.

Originally developed by Ericsson, Bluetooth technology is now used in many different products by many different manufacturers.

From 2002-2004 the Bluetooth SIG was based in Overland Park, Kansas USA and is now based in Kirkland, Washington.

Encryption is also used to protect data in transit, for example data being transferred via networks ( e. g. the Internet, e-commerce ), mobile telephones, wireless microphones, wireless intercom systems, Bluetooth devices and bank automatic teller machines.

Task group one is based on Bluetooth technology.

A wireless personal area network ( WPAN ) is a PAN carried over wireless network technologies such as IrDA, Bluetooth, Wireless USB, Z-Wave, ZigBee, or even Body Area Network.

A Bluetooth PAN is also called a piconet ( combination of the prefix " pico ," meaning very small or one trillionth, and network ), and is composed of up to 8 active devices in a master-slave relationship ( a very large number of devices can be connected in " parked " mode ).

After the assassination of Harald II, Harald Bluetooth ( Harald I of Denmark ) managed to force the people of Norway into temporary subjection.

To be marketed as a Bluetooth device, it must be qualified to standards defined by the SIG.

The idea of this name was proposed by Jim Kardach who developed a system that would allow cell phones to communicate with computers ( at the time he was reading Frans Gunnar Bengtsson's historical novel The Long Ships about Vikings and king Harald Bluetooth ).

At its inception in 1998, the Bluetooth SIG was primarily run by a staff effectively seconded from its member companies.

Few current models use this technology, as it has been supplanted by Bluetooth and Wi-Fi.

Each model also received an enhanced trackpad with scrolling capabilities, a revised Bluetooth module supporting BT 2. 0 + EDR, and a new feature which parks the drive heads when sudden motion is detected by an internal sensor.

In some of the old sources, such as the Jómsvíkinga saga, Sweyn appears as an illegitimate son of Harald Bluetooth, raised by the legendary Jomsviking and jarl of Jomsborg, Palnatoke.

The biography of Harald Bluetooth is summed up by this runic inscription from the Jelling stones:

" Bluetooth " now commonly refers to the Bluetooth wireless specification designed by Ericsson, the major Swedish telecommunications organization, to enable cable-free connections between computers, mobile phones, PDAs, printers, etc.

* This article incorporates text from the 1913 Catholic Encyclopedia article " Harold Bluetooth " by Pius Wittmann, a publication now in the public domain.

Adaptive Frequency-hopping spread spectrum ( AFH ) ( as used in Bluetooth ) improves resistance to radio frequency interference by avoiding using crowded frequencies in the hopping sequence.

The Danes were united and officially Christianized in 965 AD by Harald Bluetooth ( see below ), the story of which is recorded on the Jelling stones.

In addition to their use in broadcasting, transmitters are necessary component parts of many electronic devices that communicate by radio, such as cell phones, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, and spacecraft, radar sets, and navigational beacons.

In 970, he was tricked into coming to Denmark and killed in Hals in the Limfjord in a plot planned by Sigurd Haakonsson's son Haakon Sigurdsson, who had become an ally of Harold Bluetooth.

In 970, Harald II was tricked into coming to Denmark and killed in a plot planned by Sigurd Haakonsson's son Haakon Sigurdsson, who had become an ally of Harold Bluetooth.

However, it has been displaced by other wireless technologies such as WiFi and Bluetooth, favored because they don't need a direct line of sight, and can therefore support hardware such as mice and keyboards.

It might refer not only to physical ports, but also to virtual ports, such as ports created by Bluetooth or USB-to-serial adapters.

The town was established by the Viking Slangir at the time of Harald Bluetooth.

The battle of Stord was fought on or by this island between the Norwegian king Hakon Haraldsson and the Danish king Harald " Bluetooth " Gormsson, supported by Hakon's brother's sons led by Harald " Greycloak " Eiriksson.

It is maintained by the Infrared Data Association but has also been adopted by the Bluetooth Special Interest Group and the SyncML wing of the Open Mobile Alliance ( OMA ).

Special models have also been introduced, such as the Platinum Edition, which is based on the VR but added a chrome grille and window surrounds ( sedan only ), MMCS satellite navigation and Bluetooth compatibility for handsfree mobile phone usage.

Special designs include a USB connector, RFID functions or Bluetooth wireless interface to enable transfer of a generated key number sequence to a client system.

WiMedia will transfer all current and future specifications, including work on future high speed and power optimized implementations, to the Bluetooth Special Interest Group ( SIG ), Wireless USB Promoter Group and the USB Implementers Forum.

In October 2009, the Bluetooth Special Interest Group has dropped development of UWB as part of the alternative MAC / PHY, Bluetooth 3. 0 / High Speed solution.

According to the Bluetooth Special Interest Group ( SIG ), in order to break into a Bluetooth device, a hacker must " Force two paired Bluetooth devices to break their connection ", known as Blueballing.

A " Special Edition " of the new Perodua Myvi SE was also launched on October 10, 2008 with a new bumpers, clear taillights, smoked headlights, an amber instrument panel, leather seats, and a 2-DIN Compact Disc player with MP3, WMA, USB and Bluetooth support instead of an integrated unit.