The Smoothtalker Mobile CX6 23dB gain booster is designed for single user with a phone holder. It improves cell phone signal in remote locations, reduces dropped calls and increases data speed. This plug and play kit has everything you need for quick and easy installation. Available with universal charging cradle that fits both small and large smartphones and or custom charging cradles specific to most popular phones. TheMobile CX6 can keep you connected up to 30 mi. (50km) from the nearest tower.