140db Safe Sound Personal Alarm: The emergency alarm can make a loud sound to draw attention to protect you from having an emergency even at distances as far as 606.9 ft. In addition, the sounds could last 50 minutes continuous ear-piercing alarm. High Powered: This Personal Alarm equips with 3 AG13/LR44 batteries for extended life The AG13/LR44 batteries are the secret to this alarm's painful loudness. They'll last up to 365 days before you need to consider replacing them. Multi-Function: With LED lights, the emergency alarms can be applied for night lighting, suitable for people at all ages such as students, elderly, children, women, night workers and so on; You can also use them for traveling, hiking, camping and dog walking at night. Compact And Convenient: The safety alarm keychain has a portable size for easy storage and carrying; It can be attached to women's bags, backpacks, school bags, belt loops, suitcases, keys, dog belts and so on; And you can take it even you are on the plane. Ultra Durable & High Quality: The Portable Personal Alarm uses superior environmental and durable ABS plasticn, resistance to fall, crush and voltage, and high temperature, and the copper plug, not rusty, beautiful and durable, won't break in your most adverse conditions.How to use it Easy to use the alarm will be activated when you pulled the contact pin out, To silence, just inset the contact pin in, the alarm will be off. 140db Safesound Personal Alarm High Powered With LED Lights Ultra Durable & High Quality For elderly SOS device for the old. You can keep this personal body alarm on hand to use when you need urgent help For women Female anti wolf alarm Invest in a personal alarm that can help you attract attention and deter attackers in dangerous situations. For kids A personal alarm will be good for a child who returns home during hours when there are many people around.