a new small device to defend your room or public place against snoopers and spies

small, cheap and easy (although I am not sure it will pass military and surveillance tests it will be enough for small businesses that want to protect the privacy of their clients and people who need some level of protection against snooping when they are having meetings)

some people in the US are using it against Google Glass


by the way the law on public jammers is not clear in Belgium although it is not a jammer you could see it as a kind of 'firewall in the air'

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