This is a safety alarm Highly Recomended for School Kids, Women, Joggers, Late Night Workers, People who live alone, Elderly, Disabled, Travellers & Anyone who values Self Defence. When Confronted With an intruder or attacker, just pull the Key chain to activate the alarm. The high 120 db continuous beep from the alarm confuses the intruder & also draws attention from people around. To stop the alarm, simply insert the keychain back into the slot. This Can also be used when trapped in a lift or in an emergency medical situation to draw attention from people around. Original Product exclusively from TheCitiShop.