... Functions of cellular booster: Mobile signal repeater is also called mobile signal booster, mobile signal amplifier, cell phone repeater, cell ... , cell phone amplifier, cellular booster, cellular signal booster, signal amplifier, phone signal amplifier and so on.Cellular booster is used ... m²What in package:1 x Cell Phone Signal Amplifier1XOutdoor antennaSeveral indoor antennas(depends on the coverage) ...