SureCall Fusion2Go Cell Phone Signal Booster Kit for Vehicles, All Carriers 3G/4G LTE Boosts Voice, Text and 4G LTE Signals for All North American Cell Carriers Reduces Dropped & Missed Calls and Improves 4G LTE Data Speeds Increases Signal Strength & Extends Battery Life for all cellular devices Supports Multiple Users Simultaneously Sets Up in Minutes  Simple Plug and Play Install