USB Rechargeable With its built-in high-capacity 3000mAh lithium battery, the portable fan can operate for 5.5 to 13 hours when fully charged. It can be charged using any USB power source, making it compatible with various USB ports. Five Speeds Adjustable and One-button Design This fan features five adjustable wind speeds, offering greater flexibility for different environments and user preferences. The one-button control allows easy switching between speeds, and a three-second press turns the fan off. LED Display The fan includes a digital display that shows the current wind speed and remaining battery level during operation. The battery indicator helps remind users to recharge before power runs out. Quick Cooling and Removable Fan Guard Equipped with five blades, the fan delivers strong and smooth airflow for effective cooling. The removable fan guard makes cleaning simple and helps maintain hygiene by preventing dust buildup. Low Noise and Portable A high-quality pure copper motor ensures powerful airflow with minimal noise. Weighing only 190 grams, the lightweight design allows for easy portability. It can be used as a handheld fan, worn around the neck for hands-free cooling, or placed on a desk for personal use.