The word "Bluetooth" is an Anglicized version of the Scandinavian Bl?tand / Bl?tann (Old Norse blát?nn), which is ten years old. The nickname of Harald Bluetooth, a king in the 19th century who unified the conflicting Danish tribes into a kingdom. According to legend, he also introduced Christianity. The idea to name Bluetooth after this was first proposed in 1997 by Jim Kardach, who developed a system that allowed mobile phones to communicate with computers. He was inspired by The Long Ships, a historical novel about the Vikings and King Harald Bluetooth written by Frans G. Bengtsson that he was reading at the time, which meant that Bluetooth would also unify communication protocols into a global standard.

Bluetooth (Bluetooth?): is a wireless technology standard that enables short-distance data exchange between fixed devices, mobile devices and building personal area networks (using UHF in the 2.4-2.485GHz ISM band radio waves). Bluetooth technology was originally created by telecommunications giant Ericsson in 1994 as an alternative to RS232 data lines. Bluetooth can connect multiple devices, overcoming the problem of data synchronization.

Today Bluetooth is managed by the Bluetooth Special Interest Group (SIG). The Bluetooth Technology Alliance has more than 25,000 member companies around the world, which are distributed in multiple fields such as telecommunications, computers, networks, and consumer electronics. The IEEE listed Bluetooth technology as IEEE 802.15.1, but this standard is no longer maintained. The Bluetooth SIG oversees the development of Bluetooth specifications, manages certification programs, and protects trademark rights. A manufacturer's device must comply with Bluetooth SIG standards before it can be marketed as a "Bluetooth device." Bluetooth technology has a proprietary network that is distributed to devices that comply with the standard.