B07Y3BR6LV AT&T Verizon T-Mobile Cell Phone Signal Booster 700 MHz Band 12/13/17 4G LTE Cellular Repeater for Home and Office

??etter 4G LTE Data??his dual band 700 MHz booster amplifies 4G LTE data for Verizon, AT&T . Work on Frequency: Band 13 and Band 12/17.
??ompatible with All Cellular Devices??oosts all cell service for iPhone, Samsung etc all brand phones and multiple users.
??heck Your Band and Outside Signal Before Purchase??our cell phone should work on same frequency band as the cell phone booster, please check which band your cell phone uses firstly; Cell phone signal boosters can only amplify an existing signal, if there is no outside signal, the booster will not work for you.
??utomatic Gain Control??he booster can detect the level of available incoming signal, then adjust itself for best performance. It provides a maximum signal gain of 65 decibels. This means that your booster will always optimize to provide you with the strongest signal and connection to keep your bars up and browsing speeds fast.
??xcellent Performance Guaranteed??CC and IC Certified, 30-day money-back guarantee , 3-month free replacement, 5-year manufacturer warranty..