TECHTOO 3G Yagi Antenna 15dBi 1920MHz-2170MHz Band High Gain Directional Antenna with N Female Connector for Cellular Mobile Cell Phone Signal Repeater Booster Amplifier Extender 3G Yagi Anrenna High Gain Directional Antenna 1920MHz-2170MHz Frequency for Point-to-point/Point-to-multipoint system Gain: 16dBi with 30 CM N Female Connector 15 Element Aluminum Alloy Framework Boost Cellular Mobile Cell Phone Signal Repeater Booster Amplifier Extender