Description: 130db 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. High Powered: This Personal Alarm equips with 3 LR44 batteries for extended life! The LR44 batteries are the to this alarm's painful loudness. 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. Durable & High Quality: Portable Personal Alarm uses environmental and durable ABS plastic, resistance to fall, crush and voltage, and high temperature, and the metal plug, not rusty, beautiful and durable, won't break in your most adverse conditions. Specification: Material: Plastic Volume ≥: 130 (dB) Lighting function: Yes Working voltage: 4.5-6 (V) Working current: 100 (mA) Size: approx. 64x40x21.5mm Package Includes: 1 Piece Personal Alarm Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.