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How does Bluetooth technology work?

Bluetooth technology is a method of communication among a grouping of two or more electronic devices. Bluetooth technology is both automatic and wireless, and works to streamline how devices communicate with each other. All communication through Bluetooth technology happens over low-power radio waves, travelling at a frequency of 2.45 gigahertz. In order to prevent interference with other devices in the area, such as a garage-door opener or a radio, Bluetooth maintains this low-power status. Bluetooth devices need to be within about 10 meters of each other to communicate successfully due to this low-power. While this level of proximity must be maintained, this form of communication does not require a direct line of sight between connected devices. Bluetooth technology uses spread-spectrum frequency hopping to connect to up to eight different devices, all within the same area. A personal-area network (PAN), also known as a piconet, forms when two devices begin communication via Bluetooth. Devices sharing a PAN hop frequencies in unison and therefore continue to operate together. Then, all information can be easily and instantaneously transmitted between the included devices.
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