Need a crystal clear cell signal?
Commercial 30K is the best signal phone booster for android and Iphone users. Boosts both 3G cell and 4G network signal and boasts a + 70db max gain. It is used for large sized commercial buildings which coverage up to 30,000 sq. ft. Stop putting up with dicey cell service. If you want to boost your signal in a large office building, the commercial 30K is a sure way to boost your bars.
Never miss an important business call with HiBoost Cell Signal Booster.