The is designed specifically for fleet & commercial vehicles requiring a permanent signal booster installation. Specifications•Compatibility: All Cellular Enabled Devices ( Smartphones/ Tablets)•Type: Voice/ Text/ 4G Data•Maximum Gain (dB):50 Decibels•Frequency Range: 700 Megahertz At Band 12/17/13/850 Megahertz At 5/1700/2100 Megahertz At 4/1900 Megahertz 2 Band•Length (IN):6 Inch•Width (IN):4-1/2 Inch•Height (IN):1-1/2 Inch•With Antenna: Yes | Drive Reach Fleet Signal Booster Kit