130 dB Safety Emergency Alarm- Personal alarm keychain protects you from the emergency situationAnd the sound can last for 35 minutes, just pull the pin and loud 130db sound to attract attention to get you heard. USB Power Supply- TYPE-C charging port, this personal alarm siren can use the usb data cable to charge directly. When charging is red light, when fully charged that is green light. SOS LED Light with AlarmThis emergency alarms can be applied for emergency alarm lighting at night. The flashing time can last 80min, and lighting time is 40min. IP66 Rainproof & WIDELY APPLICATION- The Alarming keychain is made of strong ABS material, anti-drop, IP66 waterproof (proof rain, can not be placed in water). Provide comprehensive emergency self-protection for women, children, the elderly, girls, students and night workers. EASY TO CARRY- The personal alarm equipped with two options of lanyard and buckle-on design for easy storage and carrying. It can be attached to women's leather bags, backpacks, school bags, belt loops, suitcases, keys, dog belts, etc.