If your bothered or feel threatened just pull the pin and an extremely loud 130 dB alarm is sounded. The sound is a weapon in itself. This alarm may cost a little more than other alarms you may have seen on the Internet, but there's a reason for that.  Quality!! Alarm is made of stronger ABS plastic; instead of snapping on, the backing for battery access is held on with screws for a strong hold; built in flashlight; metal plug in pins, etc.  Clips on belt/shoulder bag.  Comes with Door Alarm accessory, including mount, that converts Personal Alarm into a door or window alarm. Portable, easily attaches to hotel doors. Built in flashlight with reflector lens for added safety. Powered by 9V battery not included. (see larger pic)  Black only.

CSS 035 Body/Door Alarm..........$ 12.50