If you're looking for an app that can simulate the sound and light of a police siren, then you might want to check out Police Siren Light Sound Simulator from Just4Fun. This app is perfect for those who want to trick their friends or simply experience the feeling of being a police officer.

With realistic sound and fluently flashing blue and red lights, the app gives a very realistic effect comparable to a real siren installed in a police car. You can also adjust the frequency of lights flashing, so you can match the speed of the LED lights of your local police. Moreover, the app can also be used as a light simulator of other public service cars like fire brigade or ambulance.

The app is easy to use, just touch any place on the screen to turn on the police lights and touch again to turn it off. You can also customize the way the lights will be displayed by using the "Police siren display type" setting. The app is available for free on Android, so download now and start enjoying this fun application.