USB Mini Portable Air Conditioner Humidifier Air Cooler Upgraded MuteFeatures: The easy way to cool any space, Evaporative Air Cooler is a personal, eco-friendly design that pulls warm air from, T HE R OOM through its evaporative water filter to humidify while cooling. Compact, yet delivers 2x more cooling power. Personal space cooler lets you enjoy cool, clean at home or away Lightweight and portable for Indoor/outdoor use. Works via any USB power supply. It can be run by using a laptop, a power bank or a wall outlet. You just need to fill the tank with water and ice cube, then plug it into a power source and enjoy refreshing, cooling air Precisely adjustable fan speed allows you to control the sound level as you wish.Product Description: Built-in water tank lasts up to 8hours. Large battery, longer use time. Freon free, energy efficient & eco-friendly. Adjustable 3-speed operatio, On/off switch. Product size: 12.5x10.5x8.2CM Fan: high, medium and low wind speed Water tank control: electronic control Refrigeration temperature: as low as 8-12 degrees Celsius Package Content:Host*1, Cable*1, Instruction*1