Portable Hand-Crank Siren for Events and Emergencies

No Power Support Required: Manually Operable and Convenient Experience the ease and convenience of using this air raid siren without the need for external power. Simply rotate the handle to set off the siren, no additional equipment required. Perfect for emergency alarms in situations where power is unavailable or unexpected.

Adjustable Volume: Controlled by Handle Speed and Trigger Adjust the volume by cranking the handle faster or slower. For an even louder alarm, press the spring-loaded trigger to open the vanes, enhancing the sound output. This feature allows for precise volume control whether you're signaling for attention in a small group or warning a larger crowd.

Wide Application: Versatile and Reliable in Many Situations Use this hand-cranked siren for a variety of needs, from loud sound warnings to celebrations, sports events, fire drills, summer camps, game show plays, and more. It is ideal for alarm systems during flood control, disaster relief, tornadoes, fires, snowstorms, and other emergency situations. Suitable for various locations like factories, warehouses, homes, schools, clubs, oil depots, public facilities, industrial occasions, wild adventures, and traffic accidents.

Practical Design: Compact, Portable, and Durable Designed with a compact, foldable shape for easy storage and portability without taking up too much space. The powerful volume and strong sound penetration make it an effective warning tool in any emergency situation. Whether you need it indoors or outdoors, this siren ensures you're always prepared.

High-quality Material: Durable and Dazzling Crafted from green coated aluminum alloy, this handheld siren is dustproof, waterproof, and resistant to wear, rust, and corrosion. It remains durable and long-lasting, ensuring multiple uses. With a volume up to 110db and a sound transmission diameter of 0.62 miles, it effectively alerts people over a wide area.