Optimized connection: 5.8G FPV drone antenna is designed for Dual-machine configuration, bringing you excellent signal quality Features: Enhanced signal reception and transmission, bringing you a smooth flight experience design: These antennas are made of strong and materials, with SMA inner screw inner pin structure to a safe and stable connection with your FPV racing drone Versatile compatibility: These antennas are suitable for a variety of FPV drones, designed to improve performance and reliability in competitive racing and leisure flying scenarios Easy to install: User-friendly design allows for quick and easy installation, allowing you to resume drone flight in no time (Double-headed) Interface: SMA internal screw and internal needle Frequency range: 5.5GHZ-6GHZ Maximum gain: 4.75dBi (5900MHz) Minimum gain: 3.28dBi (5500MHz) Maximum VSWR: 1.59 (5500MHz) Minimum VSWR: 1.11 (5900MHz) Maximum radiation efficiency: 91% (5900MHz) Minimum radiation efficiency: 69% (5600MHz/5600MHz) Polarization: Right-handed polarization RHCP Color: black Material: plastic Size:200MM Package Contents: 1 * Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.