EMERGENCY SURVIVAL WHISTLE - The emergency whistle is loud, crisp, with no moving parts, no obstructing noise, no interference, so you will be well noticed in an emergency. It's also a perfect self-defense tool, a safety whistle for women walking on the trails to warn off stalkers! UNIQUE DESIGN- This emergency whistle is a double-pitched tube design, with a larger caliber, easy to blow and stronger. The sound can reach up to 120 decibels, which can be heard from afar. HIGH QUALITY MATERIALS - This emergency whistle is made of high quality aluminum alloy, with polished surface and anti-corrosion coating surface. oxidation, which is lightweight, very strong, strong and durable. CONVENIENT TO CARRY- The emergency whistle is equipped with a keychain at the tail, which can be carried with you or connected to your key accessories , which is both beautiful and practical. SCOPE OF APPLICATION- Suitable for all outdoor activities such as camping, hiking, hunting, fishing, boating, and also suitable for to dog training. Note: The data is manual measurement, please allow 1-46cm error, due to light and screen differences, there will be some certain color difference, the specific received in kind prevail.