Use To Amplify The Cell Phone Signal In Car/ Truck/ Van And SUV; Works With Cellular Service Provider AT And T/ T-Mobile/ Verizon/ Sprint/ US Cellular; Voice/ Text/ High-Speed Internet; 50 decibels (dB) Maximum Gain; 700 MHz At Band 12 And 17/ 700 MHz At Band 13/ 850 MHz At Band 5/ 1700/2100 MHz At Band 4 And 1900 MHz At Band 25/2; 5 Volt/ 4.5 Amp; 6 Inch Length x 4-1/2 Inch Width x 1-1/2 Inch Height; With 304415 OTR Antenna/ 314419 Slim Low-Profile Antenna/ 850022 Power Supply/ 901104 Mounting Bracket/ Mast Extensions/ Coax Cable Side-Exit Adapter/ Antenna Spring/ Cable Adapter/ Thread Lock Packetstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Ltl Freight Required: f