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What is a Cell Phone Antenna Extender?

A cell phone antenna extender is not a specific product. It is a general term grouped under cell phone signal booster, repeater, or amplifier. These products improve cellular reception indoors inside homes, offices as well as inside vehicles. You may have heard the term, "antenna extender" because they essentially "extend" cell phone antenna coverage range inside buildings and cars/trucks. Read more about what it is, how it works, and which one to buy.