The DJI Antenna for O3 Air Unit is a replacement part for the original antenna that comes with the O3 Air Unit. This dual-band, dual-polarized antenna is integral to maintaining a stable, interference-free video signal during flight. Working in conjunction with the Air Unit's transmission module (sold separately) and its frequency-switching feature, the antenna helps achieve a maximum transmission range of up to 6.2 miles, ensuring smooth and reliable video streaming.