Fan Humidifier Office Portable Air Purification Humidifier Fan Portable Fan Product Selling points: 1.This product is made of high-quality ABS material, with a stylish appearance and durability.The structure of these fans is unique 2.Long service life, low noise, ultra-thin appearance. 3.Could powered by USB. 4.Reliable performance, which is fully functional and easy operation. A professional portable fan with integration of design, simple appearance and solid structure. 5.Suit for Outdoor Camping Student Desk Travel Home and Office. Specification: Product size: 139.7x109.69x274.5mm Material: ABS + vacuum plating + electronic components Rated input: 5V Working method: power bank, computer usb Water tank capacity: 300ml Instructions: (1) Click the power button to turn on a fan and at the same time turn on the atomization. (2) Short press the fan button again to turn on the second gear of the fan (3) Short press the fan button for the third time to turn on the third gear of the fan (4) Double-click the fan button to turn on or off the ambient light (5) When the fan is turned on, the atomization can be turned on or off according to the user's own needs, and the atomization time is 4 hours