Also people have had some success creating grounded faraday cages in order to shield against the EMF pulses this stuff uses to cause the tiny amount of heat induced expansion of tissues used to make you hear voices. The US military was using similar tech in Iraq and were calling it "The voice of God" weapon.
I've got a shit ton of information on this technology, it's validity is dubious at best, but can point you in the right direction to do your own research and figure out a means of defense that works best for you.