Wisewear hides a safety alarm inside a woman's bracelet
 

If there's one issue with conventional personal attack alarms, it's that if it isn't already in your hand when trouble strikes, it's basically useless. Wisewear is a company that's tackling the issue head-on by turning a piece of jewelry into an inst...

http://www.engadget.com/2016/01/04/wisewear/