Bluetooth offers worldwide compatibility as the Bluetooth radio chip, which is built into a small microchip, functions in a globally available frequency band. There is no cabling involved and files, photos and other information are easily exchanged between the connected electronic devices. The connected devices, which may include cellular phones, laptops, personal computers, printers, digital cameras, GPS receivers and even gaming consoles, communicate and exchange data through a secure 2.4GHz to 2.485GHz short range radio frequency bandwidth. Users can, therefore, create Personal Area Netwoks, or PANs for connecting with other Bluetooth compatible devices.
Bluetooth was designed keeping in mind the requirement to operate and allow sharing of data and information exchange in noisy environments where there may be interference from other radio frequency signals such as those from microwave ovens. The radio technology made use of is named frequency-hopping spread spectrum. This technology makes the link between the connected devices a very robust one.
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