Wilson Electronics 460107 Sleek 4G Vehicle Cellular Signal Booster for Boosting Phone and 4G Data on all US Carriers with Home/Office Accessory Kit Boosts 4G signals on all major carrier networks in North America Fewer dropped calls and lost connections, clearer voice calls and faster data downloads Provides a strong, reliable signal in weak signal areas More than 20 times the power of your cell phone alone Provides longer battery life for cellular devices