SolidRF MobileForce 4G Cell Phone Signal Booster 3G 4G LTE Cell Phone Booster Mobile Phone Signal Booster Cell Signal Amplifier Repeater For Car All Carriers Compatible With All US Carriers Including: AT&T, Verizon, T-Mobile, Sprint, U.S. Cellular etc. Boosts Voice, Text and Data Signals The Same Time. Perfect Cell Phone Signal Booster For Far Area Or Metal Roof Home, Office, Shop, Warehouse. Enhance Signal Up To 32x Multi User Concurrent: Smart Phone, Pad, Data Modem All Connected Directly Same Time FCC Approved, Automatic Adjust System Gain And Power Level To get The Best Communication Result. No Manual Intervention Needed. Easy Setup, All The Installation Could Be Done In Half An Hour By One Person. With Better Receive Signal, The Cell Phone Will Reduce Output Power, This Can Significantly Reduce The Transmission Power Of The Mobile Phone And Reduce The Electromagnetic Radiation To The Human Body. At The Same Time, Improve The Standby Time Of Mobile Phone Batteries Up to 2 Hours Additional.