diff --git a/Understanding-CUE.NET-ledgroups.md b/Understanding-CUE.NET-ledgroups.md
index 0a9045b..7da0e22 100644
--- a/Understanding-CUE.NET-ledgroups.md
+++ b/Understanding-CUE.NET-ledgroups.md
@@ -1,30 +1,28 @@
-> This feature exists for keyboards only. If you only want to control a mouse or headset feel free to skip this section.  
+Ledgroups are one of the basic features of CUE.NET.  
+They are used to group multiple LEDs together and apply [brushes](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-brushes) and [effects](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-effects) to them.  
 
-Keygroups are one of the basic features of CUE.NET.  
-They are used to group multiple keys together and apply [brushes](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-brushes) and [effects](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-effects) to them.  
+By the default every device itself acts as a ledgroup containing all it's LEDs. Since the device-ledgroup is always handled first on updates it's especially useful to add a background.  
 
-By the default always one keygroup exists. The _CorsairKeyboard_-class represents a keygroup containing all keys of the keyboard. Since the keyboard-keygroup is always handled first on updates it's especially useful to add a background.  
-
-Every keygroup implements the _IKeyGroup_-interface:
+Every ledgroup implements the _ILedGroup_-interface:
 ```C#
-public interface IKeyGroup
+public interface ILedGroup : IEffectTarget<ILedGroup>
 {
-    IEnumerable<CorsairKey> Keys { get; }
     IBrush Brush { get; set; }
     int ZIndex { get; set; }
     IEnumerable<CorsairLed> GetLeds();
 }
 ```
 
-The _Keys_-property provides a list of all contained keys. The respective LEDs are returned by the _GetLeds_-method. You are also able to set the [brush](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-brushes) of the group through the _Brush_-property. To specify in which order groups are handled on updates, you can use the _ZIndex_-property. It defaults to 0, lower values will be handled first.
+The LEDs the group is containing are returned by the _GetLeds_-method. You are also able to set the [brush](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-brushes) of the group through the _Brush_-property. To specify in which order groups are handled on updates, you can use the _ZIndex_-property. It defaults to 0, lower values will be handled first.   
+In addition to that, a ledgroup is always qualified to be targeted by [effects](https://github.com/DarthAffe/CUE.NET/wiki/Understanding-CUE.NET-effects) since it's marked with the _IEffectTarget_-interface.
 
-> If you plan to implement your own keygroup you should derive the _BaseKeyGroup_-class. Everything except the calculation of contained keys will be handled there.
+> If you plan to implement your own ledgroup you should derive the _AbstractLedGroup_-class. Everything (including everything effect related) except the calculation of contained LEDs will be handled there.
 
-CUE.NET currently provides two keygroups to work with:
-#### ListKeyGroup
-The _ListKeyGroup_ is designed to contain arbitrary keys. You can add or remove keys and check if a key is contained by using the respective methods _AddKey_, _RemoveKey_ and _ContainsKey_.  
-You can also merge any other keygroup by calling the _MergeKeys_-method
+CUE.NET currently provides two ledgroups to work with:
+#### ListLedGroup
+The _ListLedGroup_ is designed to contain arbitrary LEDs. You can add or remove LEDs and check if a LED is contained by using the respective methods _AddLed_, _RemoveLed_ and _ContainsLed_.  
+You can also merge any other ledgroups by calling the _MergeLeds_-method
 
-#### RectangleKeyGroup
-This keygroup calculates the contained keys by laying the specified rectangle over the keyboard and include every key which intersects with a higher percentage than specified in the _MinOverlayPercentage_-property [0.5 by default].  
-If there are keys inside this rectangle you don't want to include, you can call the _exclude_-extension method afterwards which returns the respective _ListKeyGroup_.
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+#### RectangleLedGroup
+This ledgroup calculates the contained LEDs by laying the specified rectangle over the device (this is only useful for keyboards) and include every LED which intersects with a higher percentage than specified in the _MinOverlayPercentage_-property [0.5 by default].  
+If there are LEDs inside this rectangle you don't want to include, you can call the _exclude_-extension method afterwards which returns the respective _ListLedGroup_.
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