The Fusion4Home Yagi/Whip cell phone signal booster by SureCall increases cell signal strength for voice, text and 4G LTE data for all North American cell carriers, including AT&T, Verizon, Sprint and T-Mobile. The Fusion4Home Yagi/Whip delivers unrivaled performance with cutting-edge technology, reducing dropped and missed calls and extending battery life for multiple simultaneous users on all cellular networks. Cellular reception weakens due to topography, building materials, structural design and distance from the cell tower. The Fusion4Home Yagi/Whip captures this outside cellular signal, boosts it and re-broadcasts that signal inside to your cellular device. The Fusion4Home booster is bi-directional meaning signals are amplified as they travel back and forth from your device to the cell tower ensuring that you stay connected. Dropped calls are history, as the Fusion4Home Yagi/Whip provides clear and consistent coverage for all cellular devices in 2 –4 rooms, up to 3,000 Sq Ft. With an industry leading 3-year warranty, SureCall proudly stands behind their products and emphasizes the importance of a great user experience.