Whistle Outdoor Large Volume Whistle Disaster Prevention Goods 304 Stainless Steel

【Loud Volume】Classic design with a built-in natural cork ball for loud and crisp sound. The volume near the exhaust port (within 10cm) can reach 130+dB. 【304 stainless steel】304 stainless steel and electroplating technology for safety and corrosion resistance. 【Attractive Appearance】Benefiting from exquisite electroplating, the whistle surface is very smooth and full of metallic luster. 【Excellent portability】 Small and lightweight, it is convenient to put in your hand or pocket, or attach a neck strap and hang it around your neck. 【Reliable Utility】It can be used for sports games and emergencies. Perfect for sports referees, coaches, teachers, lifeguards, leaders, campers, and anyone who might need attention.