An emergency whistle is a small, lightweight device designed to produce a loud sound to attract attention in emergency situations. Typically made from plastic or metal, these whistles can be easily carried on a keychain, backpack, or worn around the neck. They are often used by hikers, campers, and outdoor enthusiasts to signal for help or alert others to their location. The sound produced by an emergency whistle can travel much farther than a person's voice, making it an effective tool for communication in the wilderness. Many emergency whistles are designed to be waterproof and durable, ensuring they function in various weather conditions. They are an essential item for safety kits and outdoor gear, enhancing personal safety during adventures.