found at DigiDirect
Transmit your Ronin 4D video footage using the DJI Ronin 4D TX2 Video Transmitter this compact transmitter uses DJI's O3 Pro Video transmission technology to obtain up to a massive 20,0000' line-of-sight range with enhanced stability and interference resistance. It attaches to and is powered directly via the Ronin 4D gimbal body, saving the weight and space of a separate battery.
This dual-band 2.4/5.8 GHz transmitter supports DFS (dynamic frequency selection) and offers AES 256-bit encryption for security.