RunCam TX100 5.8GHz 37CH 25/100mW Nano FPV VTX

The TX100 is an even smaller VTX than RunCam's TX200. Measuring about the size of a postage stamp it's designed to fit micro quads. Better still, it only weighs 1.5 grams and that’s with the antenna attached so your battery life won't take a hit!

It offers two power output levels 25mW / 100mW and it has 37 channels.

Another great function of the VTX is that it features UART control so you can change your channel and band via Betaflight (IRC Tramp protocol supported).