Carry it with you and just pull out the metal chain to sound the alarm and deter an assailant. The alarm is 120 dB. Requires one 9 volt battery (not included).
This is a 2 in 1 Personal/Door Alarm. It acts as a burglar alarm and a personal alarm. Hang it on any door knob (non-metallic doors) and it instantly and automatically sounds when an intruder touches the door knob.
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