Bluetooth is a computing and telecommunications industry specification, which was designed for data exchange between small wireless devices. The idea behind Bluetooth is to eliminate proprietary connectivity methods as well as cables altogether. Imagine for example that you wanted to transfer MP3s from your computer to your portable MP3 player. You would need a cable made by your manufacturer since each manufacturer and model has a different cable requirement. What if your computer and your MP3 player were Bluetooth enabled? You would need no cables at all.
Bluetooth requires that a low-cost transceiver chip be included in each device. The transceiver transmits and receives at the previously unused band of 2.45 GHz, which is available globally, with some variation of bandwidth in different countries. The standard provides built in encryption for data and voice privacy.
As the Bluetooth standard becomes widely accepted by the entire electronics industry, more phone manufacturers are building their headsets with Bluetooth capabilities. Bluetooth phones are now appearing in the US and those headsets demonstrate the promise of the evolving wireless technology.
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