DarwinFPV DJI O3 Air Unit CNC Aluminum Waterproof CaseNote: This is a case only, the DJI O3 system is NOT included. The DJI O3 Air Unit CNC aluminum alloy waterproof case is a custom built waterproof case for the DJI O3 Air Unit. It is built of high strength aluminum alloy materials and uses modern production technologies. It has IP67 level waterproof, dustproof and impact resistance. Protect your O3 Air Unit in extreme environments. At the same time, it perfectly fits the shape of the DJI O3 Air Unit,