System.ConsolePal.Beep C# (CSharp) Method

        public static void Beep(int frequency, int duration)
        {
            if (frequency < MinBeepFrequency || frequency > MaxBeepFrequency)
                throw new ArgumentOutOfRangeException(nameof(frequency), frequency, SR.Format(SR.ArgumentOutOfRange_BeepFrequency, MinBeepFrequency, MaxBeepFrequency));
            if (duration <= 0)
                throw new ArgumentOutOfRangeException(nameof(duration), duration, SR.ArgumentOutOfRange_NeedPosNum);

            Contract.EndContractBlock();
            Interop.Kernel32.Beep(frequency, duration);
        }

 public static void Beep(int frequency, int duration)
 {
     ConsolePal.Beep(frequency, duration);
 }