As a fan it works i am most concerned about charging the 18650 battery with this thingthe led supposedly stay green when charging and red when it is full mine stays red so i dont know if it knows when to cut offthe wind is decently strong if you put this thing on a table it start to slide around on its own dont put on an edge or something because it will move away on its own thus probably falling off the edge

For a few bucks i dont mind the price paid for it but i am a bit hesitant to charge via usb unless i know the fan knows when to stop chargingeditso the red led turns blue i guess that is when it is done chargingin my experience it stop spinning after an hour of use on power level 3 never kept a charge you have to have it plugged in order to work

So i have received mine paid i guess normal price for it since it wasnt like some special deal thing