Do you want to call for help in a dangerous situation? This nice alarm is portable enough to make it easy for operating. The emergency alarm can make a loud sound to draw attention to guard you against having an emergency. With LED light design, it can be used as emergency light at night. Features -Material: Plastic. -Size: About 4.00X3.50X2.00cm/1.57X1.38X0.79in. -Sound: Above 125DB. - Power supply: 3 x LR44 batteries (included). - When an emergency occurs, the victim can have the opportunity to call for help. - Comes with a keychain to easily attach the alarm to bags, belts, jackets, keychain, etc. - security alarm is a compact and to keep yourself or your loved ones protected. - Reduce your sense of Suitable for night running, walking dog, traveling, hiking, camping and other outdoor activities. - Easy to use and carry conveniently, guard yourself in a moment of need with this self . Package list: 1 x self