Cheerson CX-20 Auto-Pathfinder Operating Instructions / Features

Cheerson CX-20 Auto-Pathfinder Operating Instructions / Features I downloaded the original video from YouKu.com and uploaded it here. I did not make this video. Jump to 4:14 for calibration / auto trim instructions. • CX-20 Open Source Edition: http://www.banggood.com/Cheerson-CX20-Opensource-Version-AutoPathfinder-Quadcopter-RTF-p-932145.html • CX-20 Zero Edition: http://www.banggood.