4 Speeds AdjustableThe USB charging fan has 4 adjustable speeds. The advanced brushless motor is equipped with three large torque 8-inch fan blades which can provide powerful wind in ultra-quiet conditions to meet different cooling needs and allow you to quickly cool down. 2-in-1 FanThe USB clamp fan can be used as a portable desk fan and also has a strong base clip. The multi-function clip can be opened to 3 inches, which can be fixed on the edge of the treadmill or bed during exercise or sleep, saving space. Double 360 Rotation The electric fan supports double 360 rotation vertical and horizontal 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 at any angle. Dual USB PoweredThis rechargeable fan has dual USB charging ports, support 5V-2A fast charging, compatible with car charger, laptops, power bank, USB socket, etc.which can last up to 24 hours when fully charged. Wide Application USB fans are used in indoor and outdoor activities. It is ideal for home, office and bedroom, can also be carried with you (requires power supply) for traveling and camping.