Mobile X1 is a plug and play wireless booster that does not require a physical connection to the cell phone or cellular data device and boosts signal to all cell phones and cellular devices within the booster's range simultaneously. The Mobile X1 is the highest power 50 dB gain booster available and features automatic oscillation control, and network overload protection to maintain maximum efficiency at all times. It has 50dB of gain and provides coverage throughout your car, truck, RV or boat. Comes with an 11" Magnetic mount antenna, which is best suited to vehicles with obstructions on the roof where some vertical height is required.