Check the listing for details. Multiuse Personal, Door, Window Alarm with Flashing Light. Color: Black, Condition: New. Listed at 13.99 USD. Looks like an ordinary pager, and attaches to a belt or purse for easy accessibility, there're many different ways this loud 130DB alarm can be used:Personal Alarm - Carry it in a purse/pocket or attach it to your belt. In an emergency pulling the cord will activate the 130DB alarm and flashing light which will scare off a would-be attacker. Purse/Briefcase/Backpack Alarm - Clip cord to your belt or wrapped around your wrist with the alarm placed inside your purse/briefcase/backpack. Alarm will sound if someone attempts to take it from you. Door/Window Alarm - With the door clip, the alarm will sound and scare off a would-be intruder in an attempted entry. Laptop Computer Alarm - Place the same door clip under your property, if someone picks up the object, the alarm will activate. Requires one 9 volt battery (not included.)