Authentic Vigilant Personal Alarm - Emergency Rape/Attack Prevention SOS Alarm with Rip Cord Sound Activation and Replaceable Battery Included (Micro, Eight Colors) LOUD : 120dB personal protection alarm can be heard up to 100 yards RIP CORD ACTIVATION : rip cord style grenade pin emergency activation LIGHTEST : carry it anywhere - it's less than 1 ounce including the rip cord attachment strap STRONG: batteries included, pre-loaded, and user replaceable can power the relentless siren up to a half hour, or on standby for up to a year. You can find replacement batteries at any drug store. Similar models are single use - don't be fooled! VIGILANT WARRANTY: Vigilant alarms come with a full 1 YEAR WARRANTY. We're a Florida, USA based company with employees and product manufacturing in America and China. All Vigilant pepper spray is manufactured in the United States. Our alarms are designed in the United States and manufactured in China.