Super Rechargeable Fan: 8000mAh large battery capacity, the camping fan can provide 8.5-25 hours working time after fully charged. Brings strong winds while having longer battery life. (Running time varies with wind speed.) Removable Fan Blades: Tent fan with removable fan blades, this travel fan is easy to carry, store and clean. Portable and powerful, make your trip more comfortable, ideal for camping REMOTE CONTROL AND TIMER: This battery-operated camping fan has a remote control that allows you to easily adjust the fan speed and timer during whether you're lying on your dorm bed or in your tent. What's more, there are 4 timer modes optional: 2/4/6/8 hours. 4 wind speeds: The portable fan has 4 wind speeds to meet your different cooling needs during hot days and nights. (weak/medium/strong natural wind). This USB fan tent can work continuously for 25/16/8.5 hours at 1/2/3 wind speed. Wide range of uses: the outdoor fan with a hook on the top allows you to hang it on a tent, tree