JISULIFE Handheld Fan with 20 Hours of Cooling, 6000mAh Battery, USB Rechargeable Portable Fan for Travel, Makeup, Concerts & Commute – Stay Cool Everywhere (White)

20H Max Cooling Time: Equipped with a larger battery capacity of 4000 mAh, twice larger than others, which supports 20 hours max working time with one full depending on the wind level