Ahhh, well your English is excellent, so no worries. I speak a few languages and also appreciate it when I get corrected on some words by native speakers. As for your power bank use, if you are using that power bank for your controller, then...
You should look at the low cost high brightness 2,200NITS FeelWorld monitor. It is just a monitor but super bright and light weight and well priced in different sizes.
percentage not pro.
Just charge up the controller to see all four lights and then if it ever drops from 3 to 2, land and take it home and recharge. You will never have an issue, if you do that. The controller will easily live through 3 drone...
I feel that a single drone popped up a minute before a speaker coming on the platform would have easily seen the form of a body in a laying down position at the Kirk and the PA incident. So simple and so effective to pick out a form from above on...