Try this in the worksheet VBA editor. If the value of A5 is greater than 50
you get a beep.
Private Sub Worksheet_Change(ByVal Target As Range)
Dim frequency As Long
Dim duration As Long
If Target <> Range("A5") Then Exit Sub
If Target.Value > 50 Then
frequency = 4160
duration = 1500
Call Beep(frequency, duration)
End If
End Sub
HTH
Regards,
Howard