KAI DENG Card Drone is smaller than an iPhone. It represents a breakthrough in the radio-controlled (RC) drone industry. The user can carry it in their pocket, allowing them to record a beautiful moment with friends and family at any time anywhere. With its super-slim body, Card Drone can take photos and record video by app, and has a flying time of around 6 minutes. Its optical flow function allows the drone to fly steadily. Moreover, the inserted facial recognition system allows the drone to follow the user as they walk.