diff --git a/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IHasInputs.cs b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IHasInputs.cs
new file mode 100644
index 00000000..b0d14e9c
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IHasInputs.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace PepperDash.Essentials.Core.DeviceTypeInterfaces
+{
+    public interface IHasInputs
+    {
+        event EventHandler InputsUpdated;
+        IDictionary<string, IInput> Inputs { get; } 
+    }
+}
\ No newline at end of file
diff --git a/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IInput.cs b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IInput.cs
new file mode 100644
index 00000000..fc49e390
--- /dev/null
+++ b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IInput.cs
@@ -0,0 +1,12 @@
+using System;
+using PepperDash.Core;
+
+namespace PepperDash.Essentials.Core.DeviceTypeInterfaces
+{
+    public interface IInput : IKeyName
+    {
+        event EventHandler InputUpdated;
+        bool IsSelected { get; }
+        void Select();
+    }
+}
\ No newline at end of file