Smoothtalker Mariner X6 marine boosters are designed with "corrosion resistant" materials which can withstand the wet marine conditions. They help vessels stay connected to terrestrial cellular towers many miles from shore. They will reduce dropped calls, increase battery life and increase data speeds, or voice and data services simultaneously. The X6 booster increases incoming and outgoing signals. The LED console display signal level indicators make installation quick and easy. Features automatic oscillation control, network overload protection to maintain maximum gain automatically at all times. Mariner X6 boosters are ideal for locations GREATER than 10 km (6 Miles) and up to 50 km (30 Miles) from the nearest cellular tower.