Used To Strengthen Cell Phone&';s Signal; Compatible With Verizon/ AT And T/ Sprint/ T-Mobile/ US Cellular/ Straight Talk And More; Voice/ 4G Data; 23 decibels (dB) Maximum Gain; 700 MHz At Band 12/17/13/ 850 MHz At Band 5/ 1700/2100 MHz At Band 4/ 1900 MHz At Band 2; 32 Times Better Cell Coverage; 5 Volt/ 2.1 Amp Charging Port; 0.65 Thickness Inch x 1.6 Width Inch x 7 Inch Height; Cradle Mount; Outdoor Antenna; Works With Cellular Service Provider AT And T Wireless/ Verizon Wireless/ T-Mobile And Sprinttable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Ltl Freight Required: f