Air Cooler is easy to use and an excellent option for staying cool. The mini air cooler requires no installation to release its cooling effect. Here are steps on how to use 1. Unwrap from its original package 2. Remove the large water tank from the top of the device and fill it with water or ice. 3. Charge the air cooler 4. Turn on the mini fan by pressing the power button 5. Adjust the fan speed to your comfort level 6. Press the power button to turn off the device 7. Empty the water tank and clean the cartridge before storing the portable air cooler. Product material: ABS / electronic components Water tank capacity: 300mL Battery capacity: 2000mAh Product size: 173.2*151.5*172.8mm Single net weight/gross weight: 873g/1095g Style/Color: White, Pink, Blue Color box size: 187x175x202mm Wind speed: 1.57m/s~2.71m/s Battery life: 1.5h~5h Charging current: 1A Motor speed: 1700rpm, 2185rpm, 2675rpm Water usage time: 12h Fan current consumption: 0.24A, 0.48A, 0.9A Products and accessories: Air Cooler x1 water curtain x1 manual x1 Type-C charging cable x1 NOTE: 1.Please allow 1-2cm differs due to manual measurement. 2.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.