In todays gadget market if your item does not multi-function in some fashion, it almost seems not worthy to purchase. This Travel Alarm Clock is a true multi-function powerhouse. Besides being a simple travel alarm clock, it also contains a built-in flashlight and a 110-decibel motion-activated intruder alarm. To get the alarm to work you just place it on the door or anything else you don’t want to move. If moved, the alarm sets off the piercing sound. I know it’s not the world’s best security system but at a cost of $40, what did you expect?