diff --git a/README.md b/README.md
index 8c45ae1..3afbbbd 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,9 @@ Arremi
 
 ![Screen Shot](ScreenShot.png)
 
-Arremi is a simple driver/router from serial to MIDI
+Arremi is a simple driver/router from Arduino USB serial to MIDI
 
 Now only for OSX
 
 Linux would be later.
+