Feature: 1. Made of high‑quality PP material, the safety whistle is light and portable, wear‑resistant and durable. You can use it for a long time. 2. Double-opening design, high-frequency audio, to ensure that the sound has strong penetrating power in different environments. 3. Equipped with a plastic rotating buckle, the whistle is convenient to carry and can effectively prevent loss if connected to a lanyard. 4. You can clip the whistle to your belt or shoulder straps for quick and easy use in case of emergency to protect yourself. 5. Widely used in emergency calls for help in water distress, contact between outdoor activity members, and individual trapped in the wild for help, etc. Specification: Item Type: Emergency Whistle Material: PP Usage: Emergency Call for Help in Water Distress, Contact Between Members, Individual Trapped in the Field for Help, Standard Water Sports Life Jacket Accessories, Women's Wolf Protection, Students Frighten People, Trapped in Natural Disasters, Send out a Call for Help, International SOS Call for Help Whistle. Package List: 1 x Emergency Whistle