Vangold Portable USB Desk Fan 3 Speed Mini Rechargeable Cooling Fan Desktop Battery/USB Powered for Office Home and Travel Black 3 Speeds adjustable and 4pcs plastic fan blades:with strong wind,you will feel cool in seconds Rechargeable Battery: Rechargeable battery and USB charge cable make it energy saving and environmental protection Mini 4 inch design,portable: Just move to any place,do not need to support or fix, only need a flat surface making it so much more convenient to use Could connect the fan with USB cable to power bank and computer or any USB outlet , or using a adapt plug to charge the fan battery Package : 1 x Mini Electric Fan,1 x battery ,1 x USB cable