12V 200W Remote Control Sound Alarm Siren with MP3 Play in USB Interface Loudspeaker Megaphone Horn for Car Truck Boat Train Ship Ambulance Police Fire Alarm : Amazon.ca: Electronics
Ship Horn Sound Effects - YouTube
Amazon.com : Pyle 100-Watt Square Megaphone Bullhorn, Lightweight and Portable Loud Air Horn with Aux (3.5mm) Input for MP3/Music, Automatic Siren, MIC/Talk (Black), 1500 Square Yards Projection Range : Sports & Outdoors