MINI FAN: BUILT-IN RECHARGEABLE BATTERY, SUPPORTS 2-3 hours continuous operation. USB rechargeable, no extra batteries required. RECHARGEABLE FANS: warm tip: dear buyers, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. really hope you understand thanks USB fans: small enough to fit in a purse or handheld, perfect size for both indoor and outdoor use. HANDHELD FANS: made of plastic material, is light and durable. USB rechargeable fan: easy and convenient use. this handheld fan 2 wind modes (low/high). switch freely between strong wind and breeze switch. [Perfect Gift Idea] - Its beautiful look make it a really creative gift idea. It is a great and unique gift item for families, kids, friends in special days such as Birthday, Christmas and New Year's day. [Sale Guarantee] - If you have any questions about the product, please contact us, our professional customer service team will solve the problem for you as soon as possible.