This PA is LOUD, but you can adjust the volume. Plus it has 5 different sounds. 60 Watts 12 volt. The mic can be unplugged for easy install. Comes with the mounting hardware as well.

 

 

 

Specifications: Easy to install   12 Volt powered  60W Speaker provides very loud sound.  5 Siren sounds: Hooter/Ambulance/Traffic/Police/Fire alarm  Microphone for PA system,can set the volume