https://32feet.codeplex.com/wikipage?title=Local%20Radio%20Information
BluetoothRadio myRadio = BluetoothRadio.PrimaryRadio;
if (myRadio == null) {
Console.WriteLine("No radio hardware or unsupported software stack");
return;
}
RadioMode mode = myRadio.Mode;
// Warning: LocalAddress is null if the radio is powered-off.
Console.WriteLine("* Radio, address: {0:C}", myRadio.LocalAddress);