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.Product size: 139.7x109.69x274.5mmMaterial: ABS + vacuum plating + electronic componentsRated input: 5VWorking method: power bank, computer usbWater tank capacity: 300ml(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 light1 x air cooler1 x USB data cableDue to manual measurement, please allow an error of 1-3 cm. Please make sure you do n’t mind before bidding.Due to the differences between different monitors, the picture may not reflect the actual color of the project. Thank you!