This compact 100 Watt Siren features include Rocker switches to activate Wail, Yelp, Manual, Horn & Phaser Tones. Auxiliary input for horn ring control of horn or optional HRC function. Power output indicatior for diagnostics. Channels for mounting bolts allow for depth adjustment. Perfect for Vehicle or Motorcycle Use. Meets Class A. Dimensions: 2" H x 6" W x 6" D Warranty: 5 Years