diff --git a/DS4Windows/DS4Forms/ControllerReadingsControl.xaml b/DS4Windows/DS4Forms/ControllerReadingsControl.xaml
index 259b027..42b58e5 100644
--- a/DS4Windows/DS4Forms/ControllerReadingsControl.xaml
+++ b/DS4Windows/DS4Forms/ControllerReadingsControl.xaml
@@ -12,7 +12,8 @@
              d:DesignHeight="450" d:DesignWidth="430">
     <DockPanel LastChildFill="False">
         <StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
-            <Label x:Name="inputDelayLb" Content="Input Delay: N/A">
+            <Label x:Name="inputContNum" Content="#" FontWeight="Bold"/>
+            <Label x:Name="inputDelayLb" Content="Input Delay: N/A"  Margin="8,0,0,0">
                 <Label.Background>
                     <SolidColorBrush x:Name="inpuDelayBackBrush" Color="Transparent" />
                 </Label.Background>
diff --git a/DS4Windows/DS4Forms/ControllerReadingsControl.xaml.cs b/DS4Windows/DS4Forms/ControllerReadingsControl.xaml.cs
index 85dd38f..c2892c2 100644
--- a/DS4Windows/DS4Forms/ControllerReadingsControl.xaml.cs
+++ b/DS4Windows/DS4Forms/ControllerReadingsControl.xaml.cs
@@ -30,6 +30,7 @@ namespace DS4WinWPF.DS4Forms
         }
 
         private int deviceNum;
+        private event EventHandler DeviceNumChanged;
         private NonFormTimer readingTimer;
         private bool useTimer;
         private double lsDead;
@@ -113,6 +114,7 @@ namespace DS4WinWPF.DS4Forms
         public ControllerReadingsControl()
         {
             InitializeComponent();
+            inputContNum.Content = $"#{deviceNum+1}";
 
             readingTimer = new NonFormTimer();
             readingTimer.Interval = 1000 / 60.0;
@@ -121,6 +123,12 @@ namespace DS4WinWPF.DS4Forms
             RsDeadChanged += ChangeRsDeadControls;
             SixAxisDeadXChanged += ChangeSixAxisDeadControls;
             SixAxisDeadZChanged += ChangeSixAxisDeadControls;
+            DeviceNumChanged += ControllerReadingsControl_DeviceNumChanged;
+        }
+
+        private void ControllerReadingsControl_DeviceNumChanged(object sender, EventArgs e)
+        {
+            inputContNum.Content = $"#{deviceNum+1}";
         }
 
         private void ChangeSixAxisDeadControls(object sender, EventArgs e)
@@ -150,6 +158,7 @@ namespace DS4WinWPF.DS4Forms
         public void UseDevice(int index)
         {
             deviceNum = index;
+            DeviceNumChanged?.Invoke(this, EventArgs.Empty);
         }
 
         public void EnableControl(bool state)