Enery saving & Eco-friendly - This evaporative air cooler is Freon-free & do not contain refrigerant and eco-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 Days. 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 bills. 3 Wind speeds & 7 Color - 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 disperse the coolness within seconds, Small portable air conditioner with 7 Different Color-Cycle! The built-in colorful and soft led lights can not only create a romantic atmosphere but also help you improve your sleep. Large capacity water tank - This Small air cooler With a large 500 Milliliters water tank, Add