Product description Self Defense】 - Personal alarm keychain protects your security! Whatever it is, with this you will get noticed, simply pull the pin and loud 130db sound and flashing strobe light will get you heard. Suitable for Everyone】 - Get the help you need quickly. Often used by seniors to call for help in case of falling, feeling unsafe, physically threatened, medical emergencies, accidents, or allergic reactions. Great gift for parents, students and anyone who works evenings. Wonderful defense siren keychain for everyone. SOS LED light with alarm】 -Requires no training or skill to use. Equipped with high-intensity LED lights. Extremely Loud (Farthest Reaching Up To 1000ft Away). Military-grade durability (weather). Equipped With CR2032 battery, very durable and long service life! Easy to Use / Carry】 Comes with hooks to easily attach the alarm to bags, belts, jackets, keychain etc. Just pull the pin and loud 130db sound and flashing strobe light will get you heard. PEACE】 When an emergency arises, victims may have the opportunity to call for help! Protect yourself in a moment of need with Self Defense Siren.