This fan is as small as your palm. Its working voltage is 12V DC. It can work with a simple 12V battery without any difficulty. This mini fan has the ability to run at a speed of 6800 ~ 13000 rpm, t is light in weight and strong enough to bear some falls on the ground. So if you are looking for a perfect combination of strength and insulation in a single fan, then you are in the right place.12V DC is enough to run this little guy,It can withstand high room temperature.,Very light in weight,So small in size just as the size of your palm,Model name  : 5010,Working voltage  : 12V,Lightweight,Durable,Dimensions of the fan  :  50mm x 50mm x 10mm,Comes with two red and black wires attached,