WinRTCode.cs

class Program
    {
        async static Task GetFirstAudioDevice()
        {
            DeviceInformationCollection deviceInfoCollection = await DeviceInformation.FindAllAsync(DeviceClass.Location);

            Console.WriteLine("The number of Location device:" + deviceInfoCollection.Count);
            for (int i = 0; i < deviceInfoCollection.Count; i++)
            {
                DeviceInformation deviceInfo = await DeviceInformation.CreateFromIdAsync(deviceInfoCollection[i].Id, null, deviceInfoCollection[i].Kind);
                Console.WriteLine("The Name of {0}th of Location device: {1}", i, deviceInfo.Name);
            }

            Console.WriteLine("Done");
        }

        [STAThread]
        static void Main(string[] args)
        {
            GetFirstAudioDevice().Wait();
        }
    }