Rechageable Desktop Fan USB Fan 360° Rotatable Fan for Desk Portable Fan Mini Fan with Built-in 4000mAh Battery Skin Rejuvenation Usage time: 4 hours (large)/3

Usage time: 4 hours (large)/3 hours (small)

Ultraviolet wavelength: UVC 260-280nm

Air pressure massage

34*13*24cm

Rechageable Desktop Fan USB Fan 360° Rotatable Fan for Desk Portable Fan Mini Fan with Built-in 4000mAh Battery Skin Rejuvenation Usage time: 4 hours (large)/3Features: 4000mAh Rechargeable Desktop FanWith 18650 cell battery built in and 4000mAh capacity, the portable desktop fan ensures a long time endurance without worrying about the power problem. Multiple Power MethodsStandard Micro5 pin USB charging cable is equipped to the table cooling fan, so you can get the fan rechargeable through the USB charging cable. What's more, there are other ways to power the desktop fan, such as via computer and adapter.