diff --git a/app/release/app-release.apk b/app/release/app-release.apk
index 9d1f953..13ae3ba 100644
Binary files a/app/release/app-release.apk and b/app/release/app-release.apk differ
diff --git a/app/src/main/java/com/zcshou/joystick/JoyStick.java b/app/src/main/java/com/zcshou/joystick/JoyStick.java
index e4489d7..4e17869 100644
--- a/app/src/main/java/com/zcshou/joystick/JoyStick.java
+++ b/app/src/main/java/com/zcshou/joystick/JoyStick.java
@@ -180,7 +180,6 @@ public class JoyStick extends View {
                     } else {
                         mSpeed = Double.parseDouble(sSpeed);
                     }
-                    DisplayToast("Speed:" + mSpeed);
                     mListener.setCurrentSpeed(mSpeed);
                 }
             }
@@ -204,7 +203,6 @@ public class JoyStick extends View {
                     } else {
                         mSpeed = Double.parseDouble(sSpeed);
                     }
-                    DisplayToast("Speed:" + mSpeed);
                     mListener.setCurrentSpeed(mSpeed);
                 }
             }
@@ -228,7 +226,6 @@ public class JoyStick extends View {
                     } else {
                         mSpeed = Double.parseDouble(sSpeed);
                     }
-                    DisplayToast("Speed:" + mSpeed);
                     mListener.setCurrentSpeed(mSpeed);
                 }
             }