SHENFAN Pomegranate Doll Emergency Personal Alarm/Wolf Alarm for Kids,Elderly,Women,Perfect Adventurer your Bag,100dB,Batteries Included Even louder 100dB ear-splitting alarm (louder than a rock concert!) Extended 40 minutes of continuous alarm duration Preloaded with 1 battery for easier battery replacement Emergency grenade pin rip-cord Fit for people in all stage: kids, women may come across dangerous situation or need help, adventurers who detached from the crowed or in dangerous situation.