This is a foldable USB fan that can be used indoors and outdoors.It can be used outdoors after a full charge, and the longest battery life can reach 9 hours, breaking the fan space limitation. The fan can be stretched up to 1m, the height of the fan when folded into a desktop can be up to 20cm, the height of the fully folded storage is only 10cm, and the weight is 1.2kg. Indoor storage does not take up space, and it is very convenient to carry for outdoor activities.4 gears to meet your daily needs, the wind is gentle and comfortable, with 7 noise reduction fan blades, to create a quiet and peaceful space for you. Equipped with 3600mAh large-capacity lithium battery, long-lasting battery life, it takes 2-3 hours for a full charge. Shake your head at 60 degrees left and right, and move your head close to 180 degrees up and down. Multi-angle three-dimensional blowing.4m remote control, remote control can be timed for 1-4 hours. The cover and fan blades can be removed and cleaned.