Personal Safety Protection:The self defense alarm can help to send a distress signal in the first time. Up to 50 mins of continuous sound to ensure emergency use. Targeted Humans:Perfect for students,kids,elderly,women,patients,disabled,night walkers and anyone else.A small alarm device can play a great role in protecting yourself. Loud sound: in case of any physical threats, 140DB within 1 meter loud the alarm sounds stridently,people can draw attention even 300 yards away. LED lights function: Built in torch with a High quality battery help you illuminates the walkway,find lock and othe objects in the darkness. Lightweight & Portable:Self defense alarm can be attached to purse, backpack zipper, ladies bag,keys, belt loops, and suitcases. It also can be brought onboard a plane, really convenient.