Judging by the picture, Sonic Nausea looks like a common chip and doesn't give out any idea how it can make a dirty trick. So, this is how it works: designed for the needs of army, an ultra-high frequency sound waver was created. When ultra-high frequency sound is on, it makes all people in approximately 9 meters (30 feet) area feel sick, weak and nervous. It can also influence some people more or less, and if more it means also increased perspiration, headache and he, who will be the weakest, will throw up in a couple of minutes. Unfortunately this is a natural way of how human's organism reacts on ultra-high frequency sound. What is even worse, the one who was the target of a joke can not come up with any fair idea about what is happening to him, and some start taking pills eventually – not good at all.
Sonic Nausea is very easy to buy as its price is just 29 USD. Surely a sum of money available for kids, so watch out for what they are doing round the corner. Mind you also that Sonic Nausea can stay with ultra-high frequency sound enabled for a long time on only one 9 volt battery.