About this item MULTI FUNCTIONMini air humidifier, air purifier four-in-one design.This evaporative air cooler provides 4-in-1 function of portable air cooling, spray humidification, air purification, and 7 LED lights.The built-in negative ion generator can effectively purify PM2 .5, resulting in a healthy and fresh wind. It feels as cool as summer in an ice room, The fog emitted increases the humidity of the air and keeps the skin hydrated RECHARGEABLE AIR CONDITIONER AND COOL DOWN QUICKLYOur air cooler equips with USB cable and can be charged charged by power bank, PC, car charger and other power source. It can work for 4-5 hours after being fully charged, even if you are outside, you dont have to worry about running outThe cool wind keeps you comfortable BIG CAPACITY & 2000mAh300ML Large Water tank can be used for 4-5 hours When filling it up. Cold air can be sprayed continuously for several hours to keep the body cool at night for a good sleep. With mobile power supply, 30-50 hours working time via 20000mAh power bank, don't worry about power failure 7 COLOR-CYCLE LIGHTS OPTON7 Different Colors with Color-Cycle Option! You can set the setting to automatic colour cycle, or you can fix the colour you like PORTABLE AIR COOLER FANThis USB air cooler fan with the portable handle design can be easily moved. Come with the USB cable, you can take it to wherever you need, such as room, apartments, campers, offices, bedrooms, kitchen or living rooms. It is a must-have tool for hot summers. it also an ideal gift for your family and friends