so I have gotten to know my air a bit over the course of last night, really liking this thing. thew lights and buttons seem a little confusing at first, but I quickly understood them. mine doesn't see, to have the battery-indicator-flash, but I now have run one battery untill the red light, and I noticed that even before the red light it's pretty obvious the battery needs charging. especially right before the red light the heater had to recover the tempo after every hit, but already before that I saw the flickering of the lights, I think the frequency of the flickering lowers a bit wgen charge is low so that I don't see it as a continious light anymore. or maybe I'm just more sensitive to flickering lights if I'm vaped.
and tonight I'm going to take it with me to the bar, see how it performs there, and how well it works for sharing. already got to share it though, a friend needed a place to sleep after a concert so he crashed at my place. with 2 people it wrked well.