Easy Air Cooler CR7321 is compact in size, supplied with USB port, the cooler is capable of lowering the noticeable temperature around your desktop. The Easy Air Cooler CR7321 offers 3 functions: it cools, purifies and humidifies the air. Simply add water to the water tank and choose one of three fan speeds. You can fix the up/down air direction. Quiet operation is a huge plus. For decoration, you can choose between the 7 colors of LED light, or choose not to use light. The refrigerator is equipped with a 1.2m USB cable so you can start using it right away.