A free program for Android, by Crystal Clear Ringtones.

Get ready to have your phone sound like a police car with this app! The police siren sound effects will allow you to make your phone or tablet very unique and be the first to know whenever there is an emergency or crime. These high-quality police siren ringtones are available in a variety of different sounds so you can choose the perfect one to match your style. Whether you want a siren that is simple and easy to use or a more complex and difficult to learn, you can find it in this app. With this, you can use siren sounds to make alarms, notifications, and even ringtones for your phone.