This rechargeable camping fan has a built-in 10000mAh large capacity battery,it can work continuously for 10-30 hours. Type-C and UBS conversion cable, 2A safe and fast charging, with power indicator, it only takes 4.5 hours to fully charge. When the device is dead, it can be charged by a computer, car power supply, etc. Provide three types of wind speed selection, 270degree adjustable rechargeable camping fan allows you to feel cool at all angles.In addition,the tent fan for camping has 3 kinds of light brightness,it's convenience and safety in outdoor camping and tents.The small desk fan supports reverse charging, it can charge computers, laptops, power libraries, USB chargers, mobile phone and other electronic products This portable battrey fan comes with a built-in foldable hook