This Outdoor Yagi Directional for 800/850/900MHz Band OnlyEasy installation on buildings1. This Yagi antenna is compatible with all 800/850/900MHz wireless carriers， stable performance2. This Outdoor Yagi Directional Antenna includes mounting parts for easy mounting on either at flat surface or a pole.3. This Outdoor Yagi Directional Antenna works with all major wireless carriers operating on 800/850/900MHz Note: This Yagi antenna is Not compatible with 1700/1800/1900/2100MHz Specifications: Frequency Range 824 - 960MHz Gain 11dBi Front to Back Ratio bigger than 15dB Impedance 50 ohms VSWR Less than 1.5 Cable loss 0.12dB Vertical Plane 72°F ± 5°F Horizontal Plane 76°F ± 5°F Polarization Vertical or Horizontal Connector Type N Female Number of Element 7 Rated Wind Velocity 145 Mile per Hour Working Temperature -40°F - 140°F Note: Please confirm the Frequency Range of your cellphone carriers before buying.