David and David explain what a cell phone signal booster is and whether or not they actually work.

Cell phone signal boosters are devices that improve your phone's connection to your wireless carriers network. They work by capturing a nearby cellular signal, amplifying it, and broadcasting it into the space that needs improved service.

On the other hand, "signal booster" apps don't work. These apps are designed to free up RAM on your phone and have nothing to do with improving its signal.

Signal boosters are legal in the United States, but they need to be certified by the FCC.

Best Cell Phone Signal Boosters 2020: https://www.payetteforward.com/best-c...

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