diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
 # SimpleExpressions: Make your robots cute and noisy
 
 This library simply takes a 7 LED Circle module and a buzzer to do lots of funny things, see for yourself
+
+The sound are taken from BQs Zowie. Currently the library only supports ESP32
+
+### TODO
+
+- Provide further documentation
+- Add support for normal Arduino Boards