Personal alarm are small and portable, can be attached on keychain, backpack, ladies bag, belt loops, schoolbag, suitcase and so on. . Unique tear-drop design makes these Personal Alarms fashionable and easy to grab, and its easy operating activator provides great convenience. Simply pull the pin to activate the Personal Alarms while insert the pin in to stop. Really convenient for the elders and children. . The alarm sounds great, people can draw attention about 300 yards away when you are in danger. Simply pull the pin, and this ear-piercing alarm will activate for up to a 40mins of continuous sound. . This personal alarm is made of environmental material, won't break in your most adverse conditions. It is useful, our product is different from others, small size and loud, with high quality replaceable battery. If not in use, the batteries have a 365 day standby time. . 12 Months Warranty for worry-free purchase and 30 Days no-questions-asked return policy. Ideal for children, students, women, joggers, kids, elders, and any other ones who need Self-Defense. Suitable for night running, traveling abroad, hiking, camping, riding, entertaining and other outdoor activities. .