This item is one of Assured Automotive Products most popular items we carry. Sold EXCLUSIVELY by Assured Automotive Company and their Dealers. It is so much fun, you may want to check your local laws. It may be illegal for you to have this much fun!! This kit include a 50watt ABS Speaker that blares out @ 115db. Also included is a durable microphone(handle) with 3 buttons to control the different siren tones. There are 2 wail tones and an air horn tone. Don't forget the PA Microphone, after you mess with somebody, let hear you laugh!! How do you hook up?? You simply connect the RED wire to a 12v source(inline fuse recommended). You run the BLACK wire to a ground(or negative battery post). Installer may need to purchase additional wiring. The mic. feed wire is 75 inches long. You the plug the mic. cord into that. Literally hooks up in a couple of minutes.