SureCall Fusion4Home Yagi/Panel, Cell Phone Signal Booster Kit for All Carriers 3G/4G LTE up to 4,000 Sq Ft Boosts voice, text and 4G LTE signals for all North American cell carriers Reduces Dropped & Missed Calls and Improves 4G LTE Data Speeds Covers a small home or office, up to 4,000 sq ft.Noise Figure: 8 dB Increases Signal Strength & Extends Battery Life for all cellular devices Please note indoor coverage area will vary based on available outdoor signal strength: 1-2 Bars ~1500 sq ft, 3-4 Bars ~3000 sq ft, 5 Bars ~4000 sq ft