self defense personal alarm keychain 130 db loud siren protection device with led light emergency alert key chain whistle for women

pull out the pin quickly ,the 130db alarm will sound,and the led will flash to remind others in an emergency for help standby time can be up to 3 years, and the harsh alarm sound can last up to 6 hours. our alarm not contains 2 aaa batteries .without battery the safety alarm uses a night lighting design with led lights, which can be used for night walking or emergency lighting. it can also stab the gangster's eyes in an emergency safe personal alarms can also attract attention when medical treatment or help is needed,which is especially important for elderly people living alone provide comprehensive emergency selfprotection for women, children, the elderly, girls,students, and night workers.syi