Used To Strengthen Cell Phone&';s Signal; Compatible With All Cellular Enabled Devices ( Smartphones/ Tablets); Voice/ Text/ 4G Data; 50 decibels (dB) Maximum Gain; 700 MHz At Band 12/ 17/ 700 MHz At Band 13/ 850 MHz At Band 5/ 1700/2100 MHz At 4 Band/ 1900 MHz At 2 Band; 5 Volt/ 4.5 Amps; 6 Inch Length x 4-1/2 Inch Width x 1-1/2 Inch Height; With 4 Inch 4G Mini Magnet-Mount Antenna/ Sim Low Profile Antenna/ Plug-In CLA Power Supplytable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Ltl Freight Required: f