another get
waist fan
I like the knob adjustment and having a usb-a out, but it's louder than I thought it would be. in a quiet environment it's not very usable, it whirrs loudly. the other small fan I bought that's more standard is also loud. not sure if it's the motors or what.

I got it for 10€ from coins page, and while it is loud, it also moves A LOT of air on higher settings (and I like that speed is adjustable with the knob, but it's not 1% increments it's 3 point steps so 1-4-7-10 but it goes up to 150 so it's plenty enough. for being outside or working or cycling I bet it's the bomb. or for making a fire. also has a small flashlight that's works in a pinch, a little stand in one of the clips so it can blow on your face while on the table, neck strap included, and usb out. though it's not very heavy so capacity is probably not that big, advertised 5000mah. charges with 10w, came discharged, and the instruction said to cycle the battery 3 times for best results. think it might have two 18650 cells and I remember when buying them some of them also say to do that, so maybe it's okay.
not sure how much it gives off with the usb-a cause it's gonna be charging a while. I'll probably update later.

right on time cause it's 34c today.
for the price I think it's okay.