Emergency Public Safety, Fire/Police Sirens and Speakers are essential equipment for emergency responder of all types. Here you will find a selection of fire sirens, ambulance sirens, police sirens with light control switches (switch box), and speakers suitable as a PA (Public Address) system or audio warning device system. Online-LED-Store offers siren units capable of working along with LED strobe warning lights to work together as a complete system, from usage by police officers as a police PA system, rescue squads, mounting on fire truck and ambulance, to usage on private personal vehicles by volunteer firefighters, the siren speaker combo kits we offer make your presence to be heard.