SolidRF Cell Phone Signal Booster BuildingForce 4G-X For Home and Office Full Band All carriers Supports 8000 Ft2 Compatible With All US Carriers Including: ATT, 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 100x, Coverage Up to 8000 Sq ft. (Note: Coverage Area Range Depend On The Outdoor Signal Level: 1-2 Bars ~2000 sq ft., 3-4 Bars ~4000 sq ft., 5 Bars ~8000 sq ft.) 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