The Smoothtalker Wave X6 30dB gain marine 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. The Wave X6 can keep you connected to 30 mi. (50Km) from the nearest tower.