Emergency Loud Whistle This stainless steel emergency whistle produces a loud sound to call for help during disasters and emergencies. It's not electronic, so it requires no batteries and can be relied upon in critical situations. Features: 150dB Loud Volume Powerful sound exceeding the takeoff noise of an airplane. Reaches far distances, even under rubble or in crowded shelters. Durable Stainless Steel Made of 430 stainless steel, resistant to rust, and suitable for long-term storage. Ideal for emergency kits. Lightweight & Compact Size: Approximately 5.7 x 1.8 x 0.8 cm, Weight: 24g. Easy to carry and doesn't get in the way. No Batteries Required Simply blow into it to produce sound, providing peace of mind during power outages or when batteries are dead. Specifications: ・Material: 430 Stainless Steel ・Size: Approximately 5.7 x 1.8 x 0.8 cm ・Weight: Approximately 24g ・Volume: 150dB ・Color: Matte Silver Usage Examples: ・For sending SOS signals during disasters such as earthquakes and fires. ・Keep it in your emergency kit or evacuation bag. ・For safety measures during mountain climbing, camping, and outdoor activities. Notes: ・Due to the extremely loud volume, please refrain from using it indoors or near the ears. ・As this is an imported product, there may be minor scratches or variations in color. Please take this opportunity to try this reliable emergency item.