This Mini hand Fan is ideal for indoor and outdoor use( bedside, in the vehicle, office, makeup studios ,gatherings, camping etc. It can be charge with a USB adapter or any USB outlet like a Computer USB port or USB port. It a piano type button for regulating its three speed levels (low, medium, high).Made of high quality plastic material. The mini fan is multi-functional as it can be handheld or or placed on a desktop .This mini-sized fan fits into your palm so you can hold it or place on a flat surface by attaching the provided sturdy base. It can also be held with the enclosed lanyard for greater ease of taking it around. So convenient...So windy!