Come and see our amazing products.Compared to other handheld fans in the market, this model is equipped with a larger battery capacity of 4000mAh(twice larger than others), which supports 5-20h working time with one full charge. Battery life depends on different speeds: Speed 1 (20 hours); Speed 2(15 hours); Speed 3(5 hours). This mini portable fan can be used as a handheld fan when outdoor and used as a mini desktop fan on a flat table when in the office. There is an anti-slip mat at the bottom of the base to keep it stable when placed on the table. JISULIFE mini hand fan is USB rechargeable with only 3 hours to get it fully charged. It supports USB charging by USB charger, car charger, or computer. It is designed with only one button control. Short press the button to turn on the fan, and press repeatedly to adjust the w Pls confirm further with us if any query about packing info, inventory status and time schedule.