diff --git a/src/PepperDash.Essentials.Core/Room/Interfaces.cs b/src/PepperDash.Essentials.Core/Room/Interfaces.cs
index 640dc91f..0835738b 100644
--- a/src/PepperDash.Essentials.Core/Room/Interfaces.cs
+++ b/src/PepperDash.Essentials.Core/Room/Interfaces.cs
@@ -159,4 +159,9 @@ namespace PepperDash.Essentials.Core
         Core.Privacy.MicrophonePrivacyController MicrophonePrivacy { get; }
     }
 
+    public interface IHasAccessoryDevices : IKeyName
+    {
+        List<string> AccessoryDevices { get; }
+    }
+
 }
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