Long Battery Life2000mAh Built-in Battery provides 14-21 working hours. 21 Working hours under wind speed gear 1, and 14 working hours under wind speed gear 2 with one full charge, so you can enjoy the fan whole day during outdoor or inside events. Power Bank Function5V/1A USB output port makes the mini fan as a power bank (2000mAh) in emergency to charge your mobile phone. Flashlight FunctionThe flashlight is quite bright and can be useful in dark areas or if electricity is out. USB Rechargeable and Touchable BladesThis mini pocket fan can be charged by computer, laptop or USB power adapter. It only takes 2-3 hours to get full charged. With special soft TPE material, the fan blades are very safe. If you accidentally touch the rotating blades, the soft blades will automatically stop and keep you safe. Foldable and PortableThe size of this pocket fan is only 4.7*1.4*1.4 inch, weight:4.4 Ounce. It can be easily put it in your pocket or purse when you are out to Disney, camping and so on. The foldable design makes it easy to carry and store. Frequently Asked Questions: How to open the cover? Method 1: Press the base where the USB connectors are and the main body on the top is exposed, and then pull it out. Method 2: There is a small gap on the top between the cover and the main body for opening. How to charge it? With a USB cable (Included), you can charge your fan through your own power adapter or computer. How do you know when to charge it and when it's fully charged? The red indicator light comes on when the battery is low. The fan is fully charged when the red indicator light stops flashing and stays on. How to use the flashlight? Hold down the button until the flashlight turns on. Note: The fan and flashlight cannot work at the same time. To turn on the fan, if the flashlight is on, you need to turn off the flashlight first. In the same way, to turn on the flashlight, if the fan is on, you need to turn off the fan first.