diff --git a/app/src/main/java/de/edotzlaff/detection/MainActivity.java b/app/src/main/java/de/edotzlaff/detection/MainActivity.java
index dd19d16..7a4d779 100644
--- a/app/src/main/java/de/edotzlaff/detection/MainActivity.java
+++ b/app/src/main/java/de/edotzlaff/detection/MainActivity.java
@@ -125,7 +125,7 @@ public class MainActivity extends AppCompatActivity {
             if (mShakeDetectionIsActive && !mShakeDetected) {
                 if(Math.abs(mAccel) > mUpperThreshold) {
 
-                    new CountDownTimer(750, 10) {
+                    new CountDownTimer(500, 10) {
 
                         public void onTick(long millisUntilFinished) {
                             mShakeDetectionIsActive = false;