Mace Brand 80738 Personal Safety Alarm with Key Chain (Black)

• Loud and powerful siren – emits loud, ear-piercing 130-dB siren-like sound to scare off threats and draw attention of others for help;• Easy to use – push the front button to activate alarm and back button to turn it off; designed for immediate deployment in high-stress situations;• Built-in whistle – equipped with backup emergency whistle for extra security in the event the siren fails to engage, providing an alternative way to draw attention or call for help;• On-the-go safety – integrated key chain clasp easily attaches to keys, purses, backpacks, lanyards, and more to keep personal alarm within reach for quick access as needed; essential when out walking alone, jogging, or commuting;• Dimensions: 3 in. x 1-1/2 in. x 13/16 in.;• Includes three 1.5-volt AG13/LR44 batteries for immediate use;