This evaporative air cooler is Freon-free & do not contain refrigerant and -friendly, Low Energy Consumption same as the power consumption of a light bulb, Uses much cheaper than running a freon air conditioner in Hot Summer . Its power is supplied by the USB port, One refill of water can last about 8 hours; You can use this personal air cooler all night without concern about your billsWith a portable and design, this USB air cooler can be easily moved from room to room, You can place the evaporative cooler in your kitchen, dorm, office or anywhere like, Moreover, it operates at low noise (less than 45dB), and will not disturb your life, working and sleep, you could also take the mini air conditioner outside, This portable air conditioner will deliver cooling, purified - Wherever you need itThis Small air cooler With a 470 Milliliters water tank, Add ice-cubes and water to the water tank, Cold air can be sprayed continuously to keep your body cool at night for a good sleep. Also, the Water Shortage Protection Function will change it to natural wind while the water out, so no worries when you fall asleep. Outperformed most of the regular fan on the market when cooling down, just sit back and enjoy yourself with this .Our mini air conditioner designed with 3 modes of speed, it can be adjusted (low / medium / high) freely according to your requirements. Fulfill the icebox with some ice or ice water, turn on this portable air cooler, and it will disperse the coolness within seconds, Three automatic timing (1H/3H/6H), so that you can choose the perfect wind direction and modes to meet your needs.Small air conditioner created with a Simple -friendly design, easy-to-understand 3 control buttons, This personal air cooler has touch screen function, bringing you different new experience. Just put yourfinger on the switch button and turn on the air fan. As long as the finger lightly, easily adjust the wind speed, set the time, simple operationColour:WhiteMaterial:ABSSize: 14.5 x 14 x 19cmPackage Contents:1 x Air Cooler1 x USB power cordOnly the above package content, other products are not included.Note: Light reflection 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.