Bluetooth is an industrial specification for wireless personal area networks (PANs). Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptop computers, PC’s, printers, PDA’s, over a secure, globally unlicensed short-range radio frequency. Bluetooth has even become a source to stream stereo music by using Bluetooth stereo headphones
Bluetooth also simplifies the discovery and setup of services. Bluetooth devices advertise all services they provide. This makes the utility of the service that much more accessible, without the need to worry about network addresses, permissions and all the other considerations that go with typical networks.