Compared to a three leaf fan, this portable neck belt fan has 4 fan blades and dual fans, providing more powerful cold air from both sides. The ultra quiet motor generates a silent wind, allowing you to enjoy the ideal coolness without being disturbed by noise. Wear a fan around your neck and let the cool breeze blow to your face, keeping away from hot flashes. [Handsfree and 360 adjustable] Ergonomic hands-free design, weighing 6.9 ounces lighter. Made of highly flexible soft silicon material, the fan can be adjusted 360 degrees to meet your preferences. Wearing it around the neck is very comfortable and can easily be placed in a suitcase or backpack, or on a table as a table fan. A must-have tool suitable for high-temperature patients such as work, exercise, travel, hiking, camping, outdoor concerts, amusement park waiting, etc. 6 Speed Options The wearable USB fan has 6 wind speed modes to meet personalized needs, with faster cooling speed and a maximum speed of 5.1m/s. With a more energy-efficient natural wind mode, the fan stops for 5 seconds every 5 seconds. Durable battery life: Equipped with a high-quality rechargeable 1500mAh battery, it supports a working time of 2-5.5 hours according to different speed levels. It can last for 16 hours in natural wind mode, meeting your various needs in different occasions.