SC-1012 Volunteer remote mount siren. Big fire truck sound. The Volunteer offers all the standard tones, Wail, Yelp, Phaser, Air horn and a highrasp mechanical tone. The remote mount Volunteer siren also has two lighting switches built in. Unit comes with amp mounted remotely and a remote switch panel to control all fuctions. This unit can help with clearing traffic, be heard like one of the big fire trucks.