Designed to deliver optimum mobile coverage the Cel-Fi GO G41 Smart Signal Repeater is the ultimate signal boosting solution for 3G/4G/5G cellular coverage. This CelFi Go booster offers up to 100 dB gain for fast and seamless voice and data performance and connectivity. With the unmatched mobile signal performance the Cel Fi GO G41 booster provides mobile signal coverage of up to 3000 m2 ideal for indoor environments.