Expand cellular range and boost cellular signal in your motorhome or RV with the easy to install SmoothTalker Mobile X2 Pro 53dB RV/Motorhome Kit. This booster kit provides superior performance in all terrain. A connection of the 12V power supply to the fuse panel or the vehicle battery is required. Signal Booster Features Max Gain: 53 dB Fused install power supply Aluminum cast housing What’s in The Box Mobile X2 Pro Signal Booster 12V install power supply 1.2m (4’) patch antenna MCT female connection 457.2mm (18�) omni high gain antenna 6.1m (20’) quad shield coax MCT male to MCT female cable