DJI will include ADS-B receivers in all DJI drones over 250 grams from January 2020 onwards
All new DJI drone models released after January 1, 2020 that weigh more than 250 grams will include AirSense technology, which receives ADS-B signals from nearby airplanes and helicopters and warns drone pilots if they appear to be on a collision course. This will be the largest single deployment of ADS-B collision awareness technology to date, and sets a new standard by putting professional-grade aviation safety technology in drones available to everyone.
Full article:
https://dronedj.com/2019/05/22/dji-ads-b-receivers-drones/