At Mace, we believe there's power in being prepared. The Mace Brand Personal Alarm Heart is compact but powerful. Emitting 130dB when activated, this portable alarm will scare off threats while drawing attention for help. With its hands-free design, the Mace Brand Personal Alarm Keychain is designed for active wear and daily use. Attach it to your belt, bag or backpack and you're ready to go. Pair this alarm with your Mace Pepper Spray for maximum safety. In case of an emergency, this personal security alarm is easily activated. The alarm is activated by pulling out the pin attached to the black rip cord. Replace the pin to silence the alarm. *Batteries included. One year after purchasing your Mace Brand Personal Alarm model, we recommend you test the alarm to make sure that it is ready to go whenever and wherever. Mace Brand Pepper Spray is different. To be clear, Mace is Pepper Spray. But not all pepper spray is Mace Brand. Mace began with the invention of a chemical compound in 1965, which later evolved into pepper spray in the 1980s. We continue to innovate the industry with powerful formulas, fast-acting delivery systems, and new safety features that ensure the ultimate in protection and peace of mind. Our products are trusted by law enforcement around the world. Look for the Mace Brand Authentic Product Seal. We created our seal of authenticity to separate Mace Brand from other products.