White Noise

White Noise is a frequency discovered by the US government that is so perfectly tuned that only psi can pick up the sounds it creates. It is shown to cause serious harm to psi, and is described as the child of a car alarm and a tornado siren. It can knock psi out, cause their noses and ears to bleed, et cetera. Reds involved with Project Jamboree can use ear mufflers to block the noise out. Adults only hear a low buzzing noise when it goes off, and it can be tuned so only certain colors can hear it. It can be also be programmed so that only certain colours will hear it.