USB Cooler Portable Desktop Fan Student Dormitory Condition Features With the function of / humidifying / anion, it is cold immediately opening, and experience different. Once the built-in water tank is full, it can last 8 hours, and the large-capacity water tank can continuously supply water. The water displays the water- real- view, which makes your use more assured. The semi-closed water tank-we try to reduce the opening area of the water tank as much as possible to a large amount of water from gushing when rolled over. The quickly spreads under the action of the wet curtain capillary, and the effect is discounted even if it is used for a long. Maintain good and humidifying effects Use: office, living room, kitchen, bedroom, bathroom and home building area. It is small and can adapt to various changes in the scene. The product is, simple appearance, no screw design, no need to be afraid of children's mischief! Folding hands saves space and is easy to handle. The silent foot pad X4 reduces vibration and noise and protects the desktop from scratches. We have carried out the noise reduction upgrade. The main sound source is the motor, but the wind noise generated by the friction between and the wind, which cannot be completely avoided. parameter Product name: fan Power: 3.5W Voltage / Current: 5V0.75Ah Water storage capacity: 200mL Product size 16 × 12.5 × 17CM Packing specification 17X14.5X21CM contain 1x cooler 1x data cable