Bluetooth

Bluetooth is a short-range wireless technology standard used to exchange data between fixed and mobile devices and to build personal area networks, typically limited to about 10 meters of range and operating over UHF radio waves between 2.402 and 2.48 gigahertz; it commonly replaces wired connections between nearby devices such as phones, wireless headphones and speakers, and car audio systems. Ericsson Mobile began developing the technology in Lund, Sweden in 1989 under the direction of its chief technology officer Nils Rydbeck, and from 1997 Orjan Johansson led the project through further development and standardization. The Bluetooth Special Interest Group launched the technology as a formal industry standard in May 1998, and Ericsson's R520m became the first commercially available Bluetooth phone in early 2001, after an unreleased Ericsson T36 prototype had been the first Bluetooth phone built.