GDU O2 hands-on with the sliding arm drone - Drone Rush
DJI Air Vs. GDU O2 Review Comparison: A Compact Drone Face-Off
GDU O2 Drone - DiveThings
Amazon.com: Customer reviews: GDU - O2 Quadcopter Drone with HD Camera (4K Video Resolution, Vision Positioning System, Smart Shot, 3-Axis Stable Video Capture, 1Km HD Video Transmission, Obstacle Avoidance, Sliding Arm Foldable)
DJI Air Vs. GDU O2 Review Comparison: A Compact Drone Face-Off
NEW GDU 02 Plus Drone Is Taking On The DJI Mavic - WeTalkUAV.Com