Mobile CX1 23dB Cellular Booster Kit with Universal Charging Holder and 11 Magnetic Antenna Includes 23dB high power mobile coupling booster, 12V vehicle socket power supply, booster input 3ft MCT female to female cable, 11 MCT mast with small magnet, plug in socket mount with CLA universal charging cradle, 12V socket male to female extension, and micro USB cable 11 high gain magnetic mount antenna is best suited to vehicles with obstructions on the roof where some vertical height is required Improves cell phone signal in remote locations, reduces dropped calls, and increases data speed Used primarily in vehicles, but can be used in a fixed location such as a motorhome or desktop fixed location use requires additional parts Keeps you connected as far as 40 miles from the nearest tower