I have never used these so can't say if they work or not, but think of the NEW Nokia phones that have the antenna built into them... perhaps this is same technology...
However, playing the devil's advocate, maybe it is the government trying to get us to use these little devices so that they can spy on us..... maybe I have been watching too much "Conspiricy Theory"
However, playing the devil's advocate, maybe it is the government trying to get us to use these little devices so that they can spy on us..... maybe I have been watching too much "Conspiricy Theory"