Indoor Omni-directional Whip antenna</br>N-male connector (50 ohm)</br>2 dBi / 5 dBi gain</br>Wide band 2G?? 3G?? 4G LTE (698 - 2700 MHz)</br>Connects directly to In-building cellular booster</br></br>Product Description</br></br>Wide band omni-directional 50 ohm indoor Whip antenna with with n-male connector for use with SureCall cell phone signal boosters.</br><br/>http://www.amazon.com/gp/product/B01M3Q34M4