A small VTx with big power.  This is an adjustable video transmitter with variable output power, so you can turn it up (to 800mw!) in open skies, and turn it down to 25mw when flying indoors or with lots of other pilots.  The Video antenna is remotely mounted making costly crashes a thing of the past.  Weighs less than 5g (4.8g on our balance)  Made for high voltage setups without a bec.