TriGuard TG02-5001 Personal Alarm Surprise would-be attackers with this ear-piercing alarm Loud - 105 decibel siren quickly brings attention when you're in trouble Small in size - It easily attaches to belt loops, keys, purses, backpacks, etc. Easy to activate - Just pull out the metal pin to activate Versatile - Children, teens adults and the elderly can all benefit by the personal alarm