There is only one thing your attacker is afraid of, and its not you or a gun you might be carrying. Your attacker is only scared of being caught. You could be in an empty parking lot with no one around and set off an alarm, and I assure you based on our interviews with convicts, they want to get out of there, its not worth it when they know the next person will probably not be as prepared. JUST AS OUR PEPPER SPRAY IS STRONGER AND GUARANTEED TO BE FRESH, ITS IMPORTANT TO NOTE OUR PERSONAL ALARMS ARE LOUDER THEN 90% ON THE MARKET ARE ALARMS ARE 130 DBL  MAKE SURE YOU CHECK THAT WHEN PURCHASING A PERSONAL ALARM.