Bluetooth is the term used to describe the protocol of a short range (approximately 10 meter) frequency-hopping radio link between devices. A Bluetooth headset allows a wireless connection between a headset and a Bluetooth-enabled cell phone. Bluetooth is a rather low-cost means for different devices to communicate with each other via a secure, short-range radio frequency. With this technology, up to seven connections can be made at one time, including cell phones, headsets, cameras, global positioning system (GPS) devices, printers, keyboards, handheld computers, and even Bluetooth-capable cars.
In the case of cars, a Bluetooth headset allows the driver to use a cell phone through the car’s audio system and an onboard navigation screen. For two devices to work together, a simple connection is established.
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