What is the meaning of "Bluetooth"?

Bluetooth (King 'Bluetooth' from Denmark, who set up the first friendship with Norway) is a cheap standard for a fast and wireless transmission (Frequence 2.4 Ghz) of voice and data between different electrical devices like Notebooks, PDA´s (Personal Digital Assistant), printer and mobile phones over a distance of up to 10 meters.

Bluetooth signals have no preferred direction and can be received by any devices/participant within the transmission range. Bluetooth devices recognize each other automatically