diff --git a/README.md b/README.md
index 35bf9e8..18cb57c 100644
--- a/README.md
+++ b/README.md
@@ -11,4 +11,6 @@ So I've decided to _tap_ and record the communication between the Checkpoint and
 Here is my journey trought this reverse engineering.
 
 Open communication Port with 115200 bps, 8N1 settings and write [Commands](CommandSet.MD).
-you may want to read return
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+you may want to read return the keys.
+
+obviously Checkpoint has use graphics always; they upload images on every update.
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