The alarm of this personal alarm is quiet shrill and extremely loud and attention-grabbing, definitely catch attention form people who is far from you and give your great help for emergency things. It's easy to make the personal alarm to alarm by pulling off the contact pin and stop alarming by plugging the contact pin into the personal alarm. The LED flashlight can be truned on by pushing down the LED light switch. The small and exquisite personal alarm is easy to carry, it can be grabbed by only one hand very easy, the keychain design make you bring the personal alarm to travel around easily, you can clip it to your keys, backpack, bag, purse, belt, etc., Very convenient.