hello,
Generic Bluetooth Device
The Generic Bluetooth Device Support component is a macro component that bundles the components that are used to support all supported Bluetooth devices, including mouse devices, keyboards, modems, printers, and network adapters. By using this component, you can quickly add generic Bluetooth device support to your device.
Bluetooth Radios : The Bluetooth Radio (layer) is the lowest defined layer of the Bluetooth specification. It defines the requirements of the Bluetooth transceiver device operating in the 2.4GHz ISM band.
More info
http://www.palowireless.com/infotooth/tutorial/radio.asp