Wilson 815326 Sleek 4g-a (At&t) Cradle Mobile Signal Booster with Home Accessory Kit and 12" Antenna Boost AT&T 700 MHz LTE as well as 3G & 2G cellular signals on 800 MHz & 1900 MHz Boosts both voice and data communications More than 20 times the power of your cell phone alone Provides a strong, reliable signal even in weak signal areas