This personal air cooler can quickly cool the surrounding hot air, USB charging, and three-speed adjustable wind power.Product description 1. Its compact design is very suitable to be placed on a table, bedside table or coffee table, which is necessary in any place. 2. It is ideal for study, reading corner, work area, dormitory, office, home office, camper, work area, bench, basement, garage, etc. 3. The air cooler can keep you away from the dry air, enjoy the atomized air, and bring more fun to users.Product attribute Operation mode: mechanical Speed adjustment gear: third gear Power supply mode: USB Water tank capacity: 270 ml Battery capacity: 2000 mAh Rated voltage: DC 5V Rated power: 5W Color: white, greenWarm reminder 1. Please remember that due to the lighting effects, the monitor's brightness / contrast settings / etc's, there will be some slight differences in the color of the pictures and the actual items. Measured by hand, deviations of 1-2 cm are possible. 2. Please leave us a message if you have any questions. We will respond and offer you our best service.