The Wilson Electronics 311125 12" Magnet Mount Antenna is a taller outside antenna for mobile signal booster kits. At 12.25 inches, it stands higher than compact mini antennas, and its omni-directional pattern picks up towers in every direction as the vehicle moves. The included mounting magnet holds it to any metal roof without drilling, so it is easy to move between vehicles or remove for car washes and parking garages. The antenna covers 700-800, 824-894, 880-960, 1710-1880, 1850-1990 and 2110-2170 MHz with a rated gain of 6.1 dBi. Impedance is 50 Ohm, which matches 50 Ohm mobile boosters. A 12.5 ft RG174 coax cable is attached, ending in an SMA-Male connector. The cable is long enough to route through a door seal to a booster inside the cabin. The 311125 is listed as compatible with the Wilson Sleek cellular signal boosters 460006 and 460106. It is a practical choice for drivers and fleet managers who want a stronger outside antenna for an SMA-based booster without a permanent install.