Features: FPV 5.8 GHz Circular Polarized Antenna Set w/Straight SMA Plug for RC Helicopters 5.8G Mushroom FPV Circular Polarized SMA Antenna Set for RC Quadcopter FPV 5.8G Clover Spirit Mushroom Antenna Set for TX RX w/Straight SMA Plug Specifications: Gain: 2.0dBi-2.5dBi Standing-wave ratio (SWR): !#!lt!*!1.5 Directivity: Omni-directional Center frequency: 5.8Ghz Connector: SMA Size:114*105*30mm Diameter of connector: 7.67mm TxA is a circular-polarized omni antenna with three lobes RxA is a circular-polarized omni antenna with four lobes Can effectively expand the launch distance and angle Appling high quality flexible antenna which can bend the antennas at arbitrary angle without deformation Package list: 1 x 5.8GHz Antenna Receiver 1 x 5.8GHz Antenna Transmitter