If you are looking for something to cool you down instantly and easy to carry during outdoor activities such as camping and hiking, then this mini portable desk fan is totally made for that. Our personal desk fan comes with high-rotation motor, blowing strong airflow to save you from hot flashes. The built-in 3.7V 4500mAh lithium-ion battery supports long working time up to 12 hours. Designed with 18 PCS SMD LED works about 20 hours, it can bring you warm and beautiful atmosphere, as well as used as a flashlight in the darkness.3 speeds can be adjusted among low, medium and high. Besides running on battery, our rechargeable fan also works with USB-enable devices, such as power bank, laptop, adapter and so on. It will never shut down. It is so lightweight and compact(7 inch) that you can even put it into a small bag and take it anywhere with you conveniently.