What does Headfree mean on a drone?

Related questions

1. What is an FPV antenna?
2. How does FPV drone work?
3. What is RHCP antenna?
4. What drone has the longest range?
5. What is the maximum speed of a drone?
6. Do I need WIFI to fly my drone?
7. How fast can a military drone fly?
8. What is RP SMA?
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Tags

1. #direction
2. #right
3. #straight
4. #problem
5. #heading
6. #degrees
7. #forward
8. #lights
9. #drone
10. #visualize
11. #facing
12. #pointed
13. #ground
14. #putting