Here is the key function for G400:
1. Support 3 flight mode:
(1). Manual mode: for basic flight and 3D flight ;
(2). GPS mode: for position hold and hovering;
(3). One key go home mode:
2. Failsafe to return home; the helicpoter can return home when lost signal.
3. Low voltage protection function: the helicopter can land by itself when the battery is low voltage;