HPC-GL-27 GSM900 and 4G 2600mhz Dual band signal repeaters A cell phone signal booster (also known as cellular repeater or amplifier) is a device that boosts cell phone signals to and from your mobile phone whether at home or office or in any vehicle. It does this by taking the existing cellular signal, amplifying it, and then broadcasting to an area in need of better reception. If you're experiencing dropped calls, slow or lost internet connection, stuck text messages, poor voice quality, weak coverage, low bars, and other cell phone reception problems, a cell phone si
2G 4G 900 2600MHz Dual Band Signal Booster