The V-Con Siren is made for most applications of the police, fire, ambulance, or tow vehicles. It comes in multiple varieties, including some with light controls. The V-Con serves as a radio rebroadcast with a hard-wired microphone. There is a back light for easy night operations. The model 3672 features the siren with HyperYelp, Air Horn, Wail, Yelp, and comes with or without light control. The model 3692 features Air Horn, Wail, Yelp, Hi-Lo, and comes with or without light control. The model 3622 is the same as the 3692 without light control and has 24v rating. The model 3696P is just the Air Horn, P.A., and radio rebroadcast and comes with or without light controls and no siren tones.