Bluetooth is an industrial specification for wireless personal area networks (PANs).
Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones, laptops , PCs , printers and digital cameras via a secure, low-cost, globally available short range radio frequency .
Bluetooth lets these devices talk to each other when they come in range, even if they are not in the same room, as long as they are within up to 100 metres (320 feet ) of each other, dependent on the power class of the product. Products are available in one of three power classes:
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