The DJI Transmission Module for O3 Air Unit is a replacement for the transmission module that comes with the O3 Air Unit. An essential part of the O3 Air Unit, this module uses the DJI O3+ video transmission system to stream footage back to a pilot's DJI Goggles 2 or FPV Goggles 2 from up to 6.2 miles away. Using frequency auto-switching and the Air Unit's omnidirectional antenna (not included), the Full HD 1080p H.265 video stream is kept stable and interference-free. The module attaches to your existing camera module with a coaxial cable (not included) via a convenient quick release design.