Cleo Robotics Demonstrates Uniquely Clever Ducted Fan Drone

IEEE Spectrum Robotics Channel 

At last year's CES, Cleo Robotics was showing prototypes of a palm-sized drone with a design unlike anything we'd ever seen. Shaped like a donut, the Cleo drone is essentially a ducted fan, with a pair of completely enclosed propellers (one on top of the other) and then a camera, battery, and electr...