This is a multipurpose and practical fan with its creative handheld and flexible design. Two kind of power supply, standard replaceable battery, strong wind power, the use of time according to different wind shift time will be different. Micro USB charging cable, can charge and use with computer, cell phone chargers, mobile power, plug and use, plug and charge, very convenient to use. This mini fan changes the use way to be a fan, a cool summer begins from here. Thanks for your supporting and purchasing.