140DB LOUD ALARM: 140db extremely loud loud sound can attract attention even in far distance, it could effectively protect you from emergency and call for help to prevent attacker damage; The sound lasts 40 to 60 minutes. MINI LED FLASHLIGHT: Mini bright white LED flashlight for emergency lighting, when you hold the small button, the flashlight will keep shining, the lamp will keep shining, it will be off when you loosen , keep yourself safe in the dark when you are alone. EASY OPERATION: Remove the hand band / pin to activate the alarm, and you can turn off the alarm by inserting the hand band / pin into the socket. Remove the screws from the back cover and replace the battery if the sounds weaken or stop working. (Battery included) USE WIDELY: This personal security alarm is a necessary safety supply for traveling, hiking, camping, and dog walking. Designed for people of all ages, such as students, children, police and correctional officers, walkers, joggers, the elderly, night owls, lone workers. RISK FREE: 100% satisfaction guarantee, if you have any questions, please contact us. We will do our best to meet your requirements, quickly and efficiently to resolve your issue.