Cavius Alarm – your portable banshee
The Cavius Alarm might be small in size, but don’t let that put you off. After all, this is a classic case of its bark being worse than its bite. A simple push of its red button will let loose a 130dB alarm which ought to be enough to scare off most assailants, not to mention alerting people to your situation. Interestingly enough, it also comes with a built-in smoke alarm feature alongside a motion sensor. The Cavius Alarm will retail for ￡34.95 each.
Source: Gadget Review