I can’t understand when charging is in progress, the red little dot indicator is on, and it can be 10-12 hours, it’s not clear when it was charged, when not ?! How to understand in general?

Some pros: Small, can be placed on a table or window sill, powered by usb, can be powered from a laptop. Quite powerful for its size, can spin, 3 power modes. Got cons: It doesn't take long to charge, but that's normal for the size. Moreover, there are sockets or a laptop or even a powerbank everywhere.

The blades are exactly like on my old table fan, produced thirty years ago by the Hong Kong fan factory, which is probably why it blows normally.

Has pros: Perfect for this hot summer Quiet, with three speeds and most importantly with the ability to automatically rotate the fan head, this is a decisive advantage. usb c Cons below: I use it as a stationary, always on the wire, it is possible to use it as a standalone, but the battery will not last long

Got pros: The perfect fan for your money. Lightweight and easy to carry to any room. Got cons: It is so cool and easy to use that I only bought it 4 times. The first three were married. It crunches when turning, then some noise in the motor.

For 2 thousand, a completely suitable device, a full charge is enough, it feels like, for 2-3 hours at maximum blowing power. Its pros: Powerful for its size, aesthetically strict and in a good way simple appearance, rotary blowing mode (about 60 degrees). Has cons: Even from charging, the battery can run out, it does not work directly from power, and with the power on, it can simply turn off after a while.

Everything in it seems to be good but noisy, although it’s like anyone, but sleeping during its operation is not very comfortable, annoying. Probably such for the office as a desktop version is the most.