Muti-Functions Air CoolerThe portable air cooler has four functions including air cooling, humidifying, purifying and night lighting. Three gears (fast, middle, slow) optional, 7-colors and gradients of LED light optional, which can be adjusted according to your demand and provides you a better environment for sleeping and working. Operates Quiet & Fast CoolingThe high-quality motor serves as the driving force for the fan to rotate, and the fan produces only 68 dB of sound when rotating, which can ensure the quality of sleep for you and your family. Simply pour some ice or ice water into the water tank, pulls in hot air through an evaporative air-cooling filter & turns it into cool within seconds. Portable DesignIt is small and manouverable in size, easy to carry. It is powered by a USB and driving power supply is 5V, the USB power supply can easily supply power to it. You can use it in the room office or outdoor tent camping or self-driving tour. High Quality & HealthMini air cooler made by high quality plastic, BPA free. It do not contain ozone refrigerant. It protects the health of your family. Note: This portable mini air conditioner only cools the area around the user. Easy to UseTo feel cool wind, only need to put water or ice cube into the water tank of Air Cooler Fan, and connect it to power supply with USB, then press the on-off button. The amount of water put into water sink is suggested to be about 3/4, which could supported to operate about 8 hours. Size20.1 x 19.1 x 17.8 cm