Heed the Warning!
Heed this very important safety warning from this toy.
When crash it with the main blades and then stop turning, When low in pressure or excess of charger or excess of push. And then helicopter battery will protect it automatically. It will appears phenomena of power off function and no function. Please re-open the on-off and will resume use it normally.
You think I was joking? Here’s the side of the box with the verbatim warning.