Portable Hand Crank Siren for Sporting Events and Emergencies

About this item

• No Power Support Required: Easy and convenient to use this air raid siren by only manually rotating the handle, no need additional external power or other equipment support, designed for no power support or unexpected situations of emergency alarms.
• Adjustable Volume: The siren volume level depends on the speed of the handle cranking, the faster the speed, the louder the sound; you can aslo press the additional spring-loaded trigger to open vanes to make it come out a louder alarm.
• Wide Application: Not only can this hand crank siren be used for loud sound warnings, celebrations, sports events, fire drills, summer camps, game show plays, but also for alarm flood control, disaster relief, tornado, fire, snowstorm or other emergency, suitable for factories, warehouses, homes, schools, clubs, oil depots, public, industrial occasions, wild adventure and traffic accidents occasions, helps to alarm in time to reduce casualties and property losses.
• Practical Design: This manual operated siren with compact size is foldable, portable, easy and convenient to use and store without taking up too much space, has powerful loud volume and strong sound penetration, provides effective warning in emergency situation anytime, anywhere.
• High-quality Material: Made of green coated aluminum alloy, this handheld siren horn is dustproof, waterproof, wear & rust resistant and anti-corrosion, reusable and long-lasting, not easy to deform or crack, the volume can be up to 110db and the sound transmission diameter is 0.62 miles, suitable for indoor or outdoor use.