
DJI has just released the new O4 Air Unit and O4 Air Unit Pro – a low-weight device (just 8.2g) which includes camera and transmission system for digital video designed for FPV video from drones.
Since a lot of FPV drones are not made by DJI, but are self-built and carefully-crafted and tweaked devices, DJI is effectively allowing access to its digital video transmission tech to the hobbyist and pro creator communities. This isn't without precedent – the device is effectively a replacement for the O3 Air Unit, based on newer tech.