Wilson Electronics Ag Pro Quint Kit - Retail Packaging - Black (Discontinued by Manufacturer) 5-band Cellular Signal Amp For Residential Use Provides Significant Signal Improvement In Any Home Up To 10,000 Sq Ft Provides Substantially Stronger Cellular Signal For Improved Calling With Improved 4g & 3g Data Speeds For All U.s. Cellular Carriers Amplifies Signal For Multiple Cellular Devices Simultaneously, Regardless Of Cellular Carrier No Physical Connection To Cellular Phone Or 4g/3g Cellular Data Device