Amazon.com: SpeedTech Lights Vireo 100-Watt Handheld Emergency Vehicle Siren System for Police, Fire Trucks, Ambulances with 6 Siren Tones Plus Horn, 6 Button Control Box and Handheld PA Microphone All in One :
Federal Signal Pathfinder Siren & Light Controller - StrobesNMore.com
Tomar 948 Siren Controller – Apps on Google Play
Whelen 295SDA1 Dual Tone Siren With Full Function Control Head from SWPS.com
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400W Car Wireless Emergency Siren Car Warning Alarm Police Siren 12V Amplifier, 15 tones Auto Police Horn - AliExpress
LED beacons | D&R Electronics
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