diff --git a/docs/Categories.md b/docs/Categories.md
index 3723c67..f895d47 100644
--- a/docs/Categories.md
+++ b/docs/Categories.md
@@ -8,6 +8,8 @@ homeSpan.begin(Category::GarageDoorOpeners,"Acme Garage Door Lifts");
 
 The table below provides a list of all HomeSpan Categories.
 
+> Note that the HomeKit primarily uses the Accessory Category of a device for determining the icon to show in the Home App when a device is being paired.  Apart from this purely cosmetic function, the Category assigned to a device does not in any way limit which Services or Characteristics can be implemented on that device.
+
 ### Category List
 
 | Category |