1.COOLING FUNCTION: Our handheld fan is different from ordinary fans on the market, with a built-in semiconductor cooling chip, it can quickly reach ultra-low temperatures, bringing cool breeze to your skin in the hot summer days. The cooling pads can also be applied to your forehead, face, neck or other parts of your body (please pay attention to your hair) to bring you instant coolness and comfort 2.3 SPEED POWERFUL WIND: Personal fan handheld designed with 3 working mode,including low, medium and high speeds. You can adjust the right fan speed by pressing the power button, and there is also a cooling button under the power button to adjust the cold compress mode to enjoy the icy wind. 4-blade design and built-in brushless motor can provide more powerful and stable wind power 3.USB RECHARGEABLE: The portable fan comes with a 2000mAh battery for long-lasting power. Battery lasts 10 hours at low speed, about 5 hours at medium speed and 3 hours at high speed. Cooling function lasts approximately 100 minutes on low speed, 85 minutes on medium speed and 70 minutes on high speed. In addition, it can be charged using any USB port, such as mobile power, computer, outlet, etc. Charging time of 3-4 hours is sufficient 4.POCKET & PORTABLE: Mini hand fan is compact and lightweight, measuring 3.052.386.96in, it doesn't take up space and is easy to carry. Easily put into your bag or pocket, which is the companion for outdoor activities, traveling or commuting. In addition, besides being a handheld fan, it can also be a desktop fan