【Fast Cooling】Designed with semi-conductor cooling, only need seconds to cool. The ice hockey surface temperature is 7-15 degrees, only takes 1-2 minutes to condensate water drops. Perfect for the outdoor audience, you don't 't have to worry about being outdoors, as this fan can keep you cool, a must-have in hot summer. 【3 Adjustable Speed】Provides 3 Different Wind Speeds - Soft/Refreshing/Strong Wind. Press the switch repeatedly to choose the appropriate fan speed, providing a strong and soft air flow. You can choose the wind speed that suits you according to different scenarios. Enjoy your cool summer with this must-have. 【2000mAh High Capacity】The mini fan comes with a 2000mAh rechargeable battery, safe, long lasting. It can work for 3-11 hours on a full charge. Equipped with a USB cable, it can be charged with laptops, computers, power banks , car power prohibition and USB charger. Gives you a cool and lasting trip. 【Ultra-low Quiet Fan】This small fan weighs only 170g, a perfect summer cooling fan. Built-in upgraded components support the fan and provide a low-noise cooling fan steadily. Bring it anywhere without putting any extra burden on you. Recommend this multifunctional fan for both outdoor and indoor use, making you feel good. 【Wide Application】You can get a portable rechargeable fan, a USB cable, and a user guide in the package. When going out, you can put it in the bag with you, especially suitable for summer travel or outdoor sports, you can take it to anywhere. It is also the best gift for family, friends, colleagues and teachers.