The Whelen Air Horn with Public Address Siren is a cost-effective addition to enhance the volume and legal tone of your car horn. It boasts a power output of 100 watts, making use of a 100-watt siren speaker that can be connected remotely to the vehicle's horn ring. The sound produced is familiar to that used by emergency services such as police, fire, and EMS. A sturdy amplifier housing can be easily mounted in remote locations like the trunk or under the seat. Moreover, the high-gain microphone, along with public address capability and volume adjustment, makes it ideal for communication purposes. This product can also be paired with standard 100-watt siren speakers.