'z.B.:
Standardmäßige Seriell über Bluetooth Verbindung (COM6)
Standardmäßige Seriell über Bluetooth Verbindung (COM7)
Standardmäßige Seriell über Bluetooth Verbindung (COM8)
Standardmäßige Seriell über Bluetooth Verbindung (COM9)

COM7 Ausgehend Name 'SPP slave'

using (var searcher = new ManagementObjectSearcher
      ("root\\CIMV2", "SELECT * FROM Win32_PnPEntity"))
{
   foreach (ManagementObject queryObj in searcher.Get())
   {
     try
     {
        if (queryObj["Caption"].ToString().Contains("(COM"))
        {
           Console.WriteLine("");
           Console.WriteLine("Caption: {0}", queryObj["Caption"]);
           Console.WriteLine("Description: {0}", queryObj["Description"]);
           Console.WriteLine("DeviceID: {0}", queryObj["DeviceID"]);
           Console.WriteLine( _
             "--------------------------------------------------------");
           foreach (PropertyData prop in queryObj.Properties)
           {
             Console.WriteLine(" => {0}: {1}", prop.Name, prop.Value);
           }
         }
      }
      catch { };
   }
}
Console.WriteLine("");
Console.WriteLine("Press enter to exit");
Console.ReadLine();

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