KIVOS Wired Mini Siren For Home Alarm Security Systems For  Protection Security 120dB Personal Alarm

1.Personal alarm safe football , suitable for : people who live alone ,night shift workers , disable , students
2.Just pull plug , will alarm ,ball alarms till 120 dB
3 When alarm sound gets low , please remove screws from back cover to replace battery
4. power :23 A 12 V battery , easy to change battery
5. Pull plug -alarm , insert plug -alarm stop

Our factory: