multifunction design:COOLS, PURIFIES and HUMIDIFIES. Refresh, humidify for a better air, the design of refrigeration takes you away from the hot summer, enjoy your refreshing summer. Design of normal buttons, more fashionable and convenient. Humidification and Cooling Wind.It has a 310ml water tank, its favorite essential oil in the water, the air comes out to increase the humidity of the air, purifies the air and keeps the moisture of the skin. If you add some ice along with the water, you will feel more cool and cool wind out. Low energy consumption, like the energy consumption of a light bulb, does not use freon, it is much cheaper than using a freon air conditioner on hot summer days. There are no exposed blades, there is no possibility of harming people and they are totally safe for children or pets to use. Mini size personal fans, very easy to lift and move, are perfect for being alone at your office desk, dining table, next to the sofa, in your bedroom, with your adorable pets or anywhere a little cooler. Air duct safety protection, special air outlet grid effectively increases the wind force, manual adjustment of the blind angle 90 to blow the air Speed adjustment gear: third gear Low sleep style: delicate and soft wind to coax you to sleep Mid-range natural wind: comfortable and cool High-end fresh air: full and large air volume Use time: 7h, second gear 4h, third gear 2.6h Function: water cooling Noise: below 40db Power supply mode: USB Wind selection: natural wind, normal wind Battery capacity: 18650 lithium battery/4000mA(Built-in battery) size:18x13.6x17.5cm Material:ABS+PP+silicone+electronic components colour:white Package Contents: 1 * air cooler 1 * USB data cable 1 * Chinese and English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.