The Bluetooth wireless technology allows users to make effortless, wireless and instant connections between various communication devices, such as mobile phones and desktop and notebook computers. Since it uses radio transmission, transfer of both voice and data is in real-time. The sophisticated mode of transmission adopted in the Bluetooth specification ensures protection from interference and security of data.

The Bluetooth radio is built into a small microchip and operates in a globally available frequency band ensuring communication compatibility worldwide. The Bluetooth specification has two power levels defined; a lower power level that covers the shorter personal area within a room, and a higher power level that can cover a medium range, such as within a home. Software controls and identity coding built into each microchip ensure that only those units preset by their owners can communicate.

The Bluetooth wireless technology supports both point-to-point and point-to-multipoint connections. With the current specification, up to seven 'slave' devices can be set to communicate with a 'master' radio in one device. Several of these 'piconets' can be established and linked together in ad hoc 'scatternets' to allow communication among continually flexible configurations. All devices in the same piconet have priority synchronization, but other devices can be set to enter at any time. The topology can best be described as a flexible, multiple piconet structure

Bluetooth is a short range, point-to-multipoint voice and data transfer operating in the 2.4GHz band. It is designed to operate between 10cms to 10 metres.

Bluetooth devices can interact in various ways, the simplest being when two devices are involved point-to-point. One device acts as master, the other as slave. This type of network is referred to as a piconet. In any Bluetooth network the master, with one or more slaves, is referred to as the piconet. There can be up to seven active slaves in the piconet. Each of the active slaves has an assigned address. There can be another 256 slaves, referred to as parked, which do not have an active address. All channel access is regulated by the master. Each parked device has an 8-bit parked member address which remains synchronised to the master clock and can quickly become activate and communicate with the piconet.

Piconets that are within range of each other are also able to communicate through time division multiplexing in a scatternet. Scatternets. Security is handled through an authentication and privacy system. The security system allows a user to set up their own devices to only communicate with each other.