What is a Bluetooth?

Bluetooth is a wireless networking technology that replaces cables. If you have a Bluetooth phone and Bluetooth hands free headset, you can use the headset to make you calls and you don't have to have a cable between the phone and headset. The devices communicate wirelessly. Other uses include hands free car sets, syncing data between your cell phone and computer, sending images to your computer, etc.

Bluetooth is a wireless media that replace cable media.it's make communication with other bluetooth device .

Well it isn't some strange form of tooth decay as you might initially imagine. Bluetooth is the name of a new technology that is now becoming commercially available. It promises to change significantly the way we use machines.