The Cellphone Signal Extender is definitely your friend if you’re living in an area where dropped calls and garbled conversations are the norm. This device when mounted near a window will give you up to 1,500 square feet of prime signal area, which is more than enough to cater to a 2-storey building within a 3 room radius. If hell hath no fury like a woman scorned, neither has it experienced fury of a geek who suffers from dropped calls. Will prolonged use of the $249.99 Cellphone Signal Extender result in you growing another arm overnight due to mutated cells from all the radiation? I doubt that, but the thought of having a third arm sure is appealing. Just make sure there is at least one bar of signal for the Cellphone Signal Extender to work.