Long battery life 2000mAh built-in battery provides 14-21 working hours. 21 hours at wind speed 1 and 14 hours at wind speed 2, a full charge allows you to enjoy a full day of fan operation in outdoor or indoor activities. Power Bank Function The 5V/1A USB output port makes the mini fan act as a power bank (2000mAh) to charge your phone in an emergency. Torch function The torch is very bright and can be used in dark areas or during power outages. USB Rechargeable and Touchable Blade This mini pocket fan can be charged from a computer, laptop or USB power adapter. It only takes 2-3 hours to fully charge. Using special soft TPE material, the fan blades are very safe. If you accidentally touch the spinning blade, the soft blade stops automatically and keeps you safe. Foldable and Portable This pocket fan is only 12*3.2*3.2cm in size and weight: 129g. It fits easily in your pocket or purse when youre out Disney, camping, etc. Foldable design for easy portability and storage.