Dual Phone Signal Booster Office Review

【Better Voice and Data Signals】 Boosts 4G LTE signals of band 12/13/17, provides faster data performance for multiple simultaneous users. 【Compatible with ALL US Networks】 Works on Verizon, AT&T, T-Mobile, US Cellular, Straight Talk. 【Check Your Band and Outside Signal Before Purchase】 Your 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. 【Automatic Gain Control】 The 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. 【Excellent Performance Guaranteed】 FCC and IC Certified, 30-day money-back , 3-month free replacement .