A. LOUD HAND CRANK SIREN - This siren produces a loud and powerful sound which is universally recognized as an emergency warning and is an effective attention-getter. B. Durability & Compact Design - The housing and handle are made of durable metal to create a sturdy structure. The handle and lever fold for easy carrying in the included waist pouch. This siren is built to ensure smooth operation for years. C. Versatile Uses - The compact portable design makes it a functional item for multiple outdoor uses. It can be easily packed in your bag as a personal safety tool during activities such as camping, hiking, and boating to scare away animals, or to signal for help in emergencies. It can also be used for warnings when electricity is not available in camps, schools and residential locations. D. Easy to Use and Carry - This manual siren is quite easy to crank, which also makes it a fun instrument. Once folded, it fits in a small bag or pouch, making it convenient to carry the siren with you whenever needed. Notice: The actual color may vary slightly from the image due to different monitor and light effects. Please allow a 1 - 3cm deviation due to manual measurement. Material: aluminum alloy Diameter: 11cm Battery: No Volume: 110 (dB) Color/Style: As the picture shown Includes: 1 x Hand Crank Siren