change your phone to flashing police light.
Screen and flashlight.
You can choose between different speeds.

- siren sound effect.
- simple and easy.
- red and blue lights .
- switch On / Off .
- full use for free!

Make sure that third-party apps are allowed on your device: go to Menu->Settings->Security-> and check "Unknown Sources"

Tap the APK file. Allow the app any required permissions it asks for. Then, at the bottom of the installer window, click INSTALL.

You'll see a confirmation the app is installed. Now you'll see the app available in your list of installed apps.