YOUDirect Personal Space Air Cooler Fan, USB Portable Mini Air Conditioner Fan, Desktop Computer Fan Small Cooling Humidifier Fan with Portable Handle HUMIDIFICATION & AIR PURIFICATION: The air cooler comes with humidification and air purification functions in one device. It has 3 wind speeds (high-medium-low) to be freely adjusted. PORTABLE with HANDLE DESIGN: 6.7 inch super small portable air cooler fan designed with a handle, very easy to carry & move. Wherever you need, on your office desk, on your bedroom or outdoor. LED LIGHT MINI FAN: Designed with led light, the nice mini fan is not only an air cooler, but also a nice decoration in your bedroom. It can offer you a good sleeping in the darkness night. MULTIPLE POWER SUPPLY: You can use the USB port of mobile devices for power supply such as laptop, car charger, power bank, also you can add a wall charger to supply power through wall outlet. 10000 mAh power bank can use 6-10 hours. REMINDING: This Portable Air Cooler Fan is Small Size for Personal Use. It Don't Use Any Coolant. So it Can't Make a Small Bedroom Cooling. Please Put it Beside you not over than 3ft-4ft.