3 units in 1! This mace emergency personal alarm can also be used as a flashing strobe light, handy flashlight and door/window alarm. To activate alarm, remove pin from the top of the unit to emit a 130db blast and flashing light. Small button on side of unit allows strobe light to be used as a flashlight. FREE attachment allows SportStrobe to be used as a door or window alarm. Uses 9-volt battery (not included). $14.95Qty: