From Longman Business Dictionary
BluetoothBlue·tooth /ˈbluːtuːθ/ noun [uncountableU] trademarkTELECOMMUNICATIONS Bluetooth technology makes it possible for information to be sent between mobile phones, computers, and other electronic equipment without using wiresBluetooth technology can be found in nearly every electronic product you can think of, from wireless game controllers to hands-free headsets.