B086JS9JZ5 Dual Band Cell Phone Signal Booster for Home and Office Use – Easy to Setup- Works on Band 12/13/17.

??etter Voice and Data Signals??oosts 4G LTE signals of band 12/13/17, provides faster data performance for multiple simultaneous users.
??ompatible with ALL US Networks??orks on Verizon, AT&T, T-Mobile, US Cellular, Straight Talk
??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 , 3-month free replacement .