Bluetooth wireless technology is a low-cost, low-power, short-range radio link for mobile devices. It offers fast and reliable digital transmission of both voice and data over the globally available 2.4 GHz ISM band. To operate in such a noisy band, Bluetooth wireless technology was originally designed with a very robust approach regarding interference and security aspects. This includes protection measures such as encryption, pairing, and authentication of devices, as well as fast frequency-hopping schemes.

Bluetooth wireless technology makes it possible to transmit signals over short distances between telephones, computers and other devices and thereby simplify communication and synchronization between devices. It is a global standard that:
- eliminates wires and cables between both stationary and mobile devices
- facilitates both data and voice communication
- offers the possibility of ad hoc networks and delivers the ultimate synchronicity between all your personal devices

The Bluetooth wireless technology comprises hardware, software and interoperability requirements. Beyond unleashing devices by replacing cables, Bluetooth wireless technology provides a universal bridge to existing data networks, a peripheral interface, and a mechanism to form small private ad hoc groupings of connected devices away from fixed network infrastructures.

Bluetooth radio uses a fast acknowledgement and frequency hopping scheme to make the link robust, even in noisy radio environments.
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