Able 2 Prducts 100 Watt Slim Siren Is a Must For Dash Mounting In Vehicles With Very Little Room Under The Dash! This AttentionGetter Comes Complete With Center Off Switch For Wail And Yelp, Plus a Momentary Switch For Air Horn. Mounting Bracket Included. Meaures: 6"L x 1.5"H x 5.5"W. 30-3109$179.99 Customer Pays All Shipping Charges. Pay securely with your Visa, Master Card, Discover/Novus or PayPal with our easy checkout! Note: Purchase orders will be accepted only by municipalities and pre-approved before check out completion and Purchase Order Number received. All others will be immediately rejected and transaction voided. Place your order by Internet, Phone or stop by our Store for the same low internet prices!