JunhengEmergency Personal Alarm Keychain - Safety / Attack / Protection / Panic / Self Defense Portable 90db Alarm - For Student, Jogger, Elderly, Kids (Combination) Fit for:Student, Jogger, Elderly, Kids, Women,The night and night worker It's also a necessory supply for traveling,hiking and camping Emergency grenade pin rip-cord or panic button alarm activation Broad consumer appeal - a self-defense option for any age Emergency Activation.Keep you safe,and To Help Scare Off Attackers or Use in Emergency