* Wireless control of and communication between a cell phone and a hands free headset or car kit. This is the most popular use.

* Wireless networking between PCs in a confined space and where little bandwidth is required.

* Wireless communications with PC input devices such as mouses and keyboards and output devices such as printers.

* Transfer of files between devices via OBEX.

* Transfer of contact details, calendar appointments, and reminders between devices via OBEX.

* Replacement of traditional wired serial communications in test equipment, GPS receivers and medical equipment.

* For remote controls where infrared was traditionally used.

* Sending small advertisements from Bluetooth enabled advertising hoardings to other, discoverable, Bluetooth devices.

* Wireless control of a games console, Nintendo’s Wii and Sony’s PlayStation 3 will both use Bluetooth technology for their wireless controllers.

* Sending commands and software to the upcoming LEGO Mindstorms NXT instead of infra red.