iFlight 5.8G LHCP Directional Circularly Polarized 9dBi FPV Antenna Patch Antenna for FPV Drone Goggles Antennas

I use this on my FPV googles. In combination with aftermarket omni-directional antennas, it helps for good diversity. I saw a clear increase in signal strength over what I had before, thanks to the directionality of the antenna and my flight style, I can fly much further away now. Feels fairly well built; it's already withstood several accidental drops while attached to my goggles, and its held up well. Overall, well worth the money I paid and would highly recommend to other FPV pilots!

I couldn't tell much difference, battery runs out to fast

performed as described

They were bought to replace a broken stock DJI antenna. They function but no better than the stock antennas and that only while facing the direction of my drone. Not complaining because I'm no worse off than before, was just hoping for a little more.