diff --git a/Neo-Features.md b/Neo-Features.md
index 83604bb..63518d5 100644
--- a/Neo-Features.md
+++ b/Neo-Features.md
@@ -75,4 +75,15 @@ This will require that you apply settings that define the power usage of your LE
 _mA = (1100 * (240 + (gain * 32)) / ohms)_
 ```
 strip.SetPixelSettings(NeoSm16824eSettings(/* left to user due to complexity */ )); 
-```
\ No newline at end of file
+```
+
+## NeoAbcdefgpsSegmentFeature
+A nine-element digit in the 7-segment order of A,B,C,D,E,F,G, decimal, and then special.  
+This is used with 7-segment LED modules that are driven with three WS2811 chips.  
+This should be used with the NeoPixelSegmentBus for string handling functionality.
+
+## NeoBacedfpgsSegmentFeature
+A nine-element digit in the 7-segment order of B,A,C,E,D,F,decimal,G, and then special.  
+This is used with 7-segment LED modules that are driven with three WS2811 chips.  
+This should be used with the NeoPixelSegmentBus for string handling functionality.
+