Bluetooth is an industrial specification for wireless personal area networks (PANs).

It provides a way to connect and exchange information between devices such as mobile phones, laptops, PCs, printers, digital cameras and video game consoles over secure, global-license-exempt, short-range radio frequencies.

Bluetooth is a radio standard and communications protocol, primarily designed for low power consumption, with a short range (power-class-dependent: 1 meter, 10 metres, 100 metres) based on low-cost transceiver microchips in each device.

Bluetooth lets these devices communicate with each other when they are in range. The devices use a radio communications system, so they do not have to be in sight of each other, and can even be in other rooms, as long as the transmission is powerful enough.