Here comes another weird and wacky gadget from the Land of Rising Sun, Japan. I don’t know what to name it but this gadget can help you in sticky situations (atleast the company thinks so). The company claims that your voice is not at par when you are frightened and the voice is not audible to people.
This gadget comes to the rescue when the pin which is placed above the gadget is pulled. It produces a sound of 105dB which is enough to alert the people passing by and help the victim.
The available color is Pink and costs 4,179 Yen which comes around US$37. You can find it here.