Hello my name is Jason today I’m giving you a real honest review of Viniper 3 speed desk fan. I bought it because It was getting warm in my work office. It has the 3 speeds and there is good range between the different speeds. Rotates so you can adjust it just how you like it. It is super quiet doesn’t affect my work or those around me. It holds a charge for the whole day even on high. If it goes dead and you plug it in the Micro USB …. And it does run while charging.