A new advance is ultra-wideband (UWB) technology, which USES very high frequencies at very shortrange to transmit huge amounts of data, as in sending video from an iPod-like device to a TV screen.
Bluetooth Technology is a kind of open specification for wireless data and voice, it is basic on low cost short-range radio link, and it can build a wireless link for immobile and mobile device.
This can be done by directly coupling the device to the unit via the interfaces 58 and 80 or use can be made of another technique such as a shortrange radio frequency or infrared link.