Verizon Cell Phone Signal Booster 4G LTE Subroad Cell Signal Booster Verizon Cell Phone Signal Amplifier/ Mobile Phone Signal Booster 700Mhz Band13 Repeater FDD with Whip+Yagi Antenna kit for HomeHow the cell phone signal booster works:The outside antenna collects cell phone signal in the area and sends to the booster. The booster amplifies the sig..