FPV Small WiFi Antenna 2.4GHz Wireless Module Omni Directional Thumb Antenna mmdvm Network Router Antenna RP SMA Male TX RX Mini RHCP Racing Drone Antenna for Multicopter WiFi USB Adapter Pack of 2

If you're just trying to connect your wifi across the room to your router, these are perfectly adequate and a lot lower profile than other options. Seem to work just fine at 2.4 and 5mhz.

Worked great.

Used these on my sffpc. Still have a solid connection over 5ghz, though switching from a full size antennas to these there was a drop off of 2 bars showing.Hasn't affected performance from what I can tell, everything works the same (speed/range)

They perform better than the 8�� long ones. No idea why. But they work amazing.

I bought this antenna for the purpose of improving my bluetooth penetration/range. Before, in my small apartment, my bluetooth signal would break up when I went into my bedroom/bathroom from the living room. Now, with the antenna connected to my fosi bt30d pro, the signal is rock solid where it kept breaking up before. Absolutely worth it. Other reviewers saying this isn't for BT are dead wrong, this is a 2.4ghz antenna, if it doesn't work with bluetooth, it doesn't work with 2.4ghz.