AirDog's ADII 'follow me' drone doubles down on action sports
 

In 2015, the big innovation in drones was "follow-me" mode. It wasn't new, but the technology was finally good enough for it to become a leading feature in quadcopters. A few did just that, most notably AirDog, Lily, 3DR, DJI and Hexo+. In 2017, Lily...

https://www.engadget.com/2017/07/12/airdog2-adii/