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What is Bluetooth?
 Overview
Bluetooth® is an international wireless communication protocol. It includes software and hardware, which allows secure, two-way audio or data streaming between Bluetooth devices such as computers, mobile phones and PDAs. Bluetooth devices send data and voice in a clean, clear, digital format up to 10 meters.
Introduction
 Bluetooth is a short-range, wireless, digital communication standard. Devices with Bluetooth technology can carry either audio information or data from one device to another — computers and their peripherals, telephones, entertainment systems, personal digital assistants and more — in a rapidly growing community of electronic innovation. In achieving connectivity across devices, Bluetooth also ELI DirX eliminates the problems of routing and sorting the many wires, cables, connectors and plugs that would otherwise be needed to link devices.
Bluetooth provides agreement across devices at the physical level by using radio frequency transmission in the 2.4-gigahertz ISM (Industrial Scientific Medical) band. It also provides agreement on communication protocols: in order to communicate accurately, devices must agree on the scheduling and packaging of bits of data so they are understood at both ends of the line.
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