Flying Helicopter Mini Drone UFO RC Drone Infraed InductionOverview Flying saucer ball flight aircraft anti collision flying saucer helicopter mini drone small intelligent induction four axis aircraft drone boy Product manual 1. Infrared sensing: There is a sensor at the bottom of the aircraft. The bottom encounters an obstacle and flies high. When the obstacle below is evacuated, the aircraft will drop. 2. Side sensing: Sensors around the aircraft can control the steering flight 3. Flexible guardrail: using