Mobile mini fan, too small to put it in your pocket, you can take it anywhere. When you feel hot, just take it out and cool at once, portable enough. And it is very quiet. You don't need to worry that the noise may disturb working or studying, or may influence other people's rest.
Little technology brings much more convenience, even outside, just need a USB port, you can enjoy the cool breeze. You can also use this portable fan to cool your phone, computer and so on. Made by ABS and soft TPE, even you touch the fan blade carelessly when it runs, you won't get any hurt.