DJI O4 Air Unit Pro — the world’s most advanced lightweight FPV system: 15 km range, 15 ms latency (Racing Mode), 4K/120fps recording on a 1/1.3″ sensor with 155° FOV, true 2T2R dual antennas, RockSteady 3.0+, D-Log M, and Avata 2 ND filter support. Ultra-compact (8.2 g module + 4.2 g antennas) yet powerful enough for racing and cinema.