diff --git a/README.md b/README.md
index ed52a03..3847ae5 100644
--- a/README.md
+++ b/README.md
@@ -2,14 +2,26 @@
 
 Wipe data on panic trigger.
 
-<img src="https://user-images.githubusercontent.com/53379023/142707625-1c8a90e2-3254-4660-9635-fcc55056508a.png" width="30%" height="30%">
-
-The app will listen for broadcast message with authentication code.
-
 [<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png"
      alt="Get it on F-Droid"
      height="80">](https://f-droid.org/packages/me.lucky.wasted/)
 
+<img src="https://user-images.githubusercontent.com/53379023/142707625-1c8a90e2-3254-4660-9635-fcc55056508a.png" width="30%" height="30%">
+
+The app will listen for broadcast message with authentication code. On receive, using 
+[Device Administration API](https://developer.android.com/guide/topics/admin/device-admin), it 
+locks device and runs wipe.
+
+## Example
+
+Broadcast message:
+```sh
+$ adb shell am broadcast \
+    -a me.lucky.wasted.action.ESCAPE \
+    -n me.lucky.wasted/.ControlReceiver \
+    -e code "b49a6576-0c27-4f03-b96b-da53501022ba"
+```
+
 ## License
 [![GNU GPLv3 Image](https://www.gnu.org/graphics/gplv3-127x51.png)](http://www.gnu.org/licenses/gpl-3.0.en.html)