4 Adjustable Speeds: The USB charging fan has 4 adjustable speeds. The advanced brushless motor is equipped with three 8-inch large torque fan blades, which can provide powerful wind under ultra-quiet conditions to meet different cooling needs and allow you to cool down quickly. 2-in-1 Fan: The USB clip fan can be used as a portable desk fan and also has a strong base clamp. The multi-function clamp can be opened to 3 inches, which can be clamped on the edge of the treadmill or bedside during exercise or sleep, saving space. 360° Double Rotation: The electric fan supports 360° vertical and horizontal dual adjustment, not only the fan head can be rotated 360° vertically, but the base can also be rotated 360° horizontally. Choose cold air in any direction to keep you cool from any angle. Fast Charging: This rechargeable fan supports 5V-2A fast charging, compatible with car chargers, laptops, power banks, USB sockets, etc. Equipped with a 10000mAh battery that can last up to 24 hours