1.40000mAh Rechargeable Camping Fan: Our portable fan built-in 40000mAh rechargeable battery, Enjoy up to 80 hours of refreshing airflow on the lowest setting and 18 hours on high (Charging time 9-10 hours). And the built-in USB & Type-C ports can easily used as an emergency bank power supply for phones, laptops and flashlights.Our battery powered fan is a good helper for camping, outdoor trips, or power outages during emergencies like hurricanes or storms. 2.Digital Battery Indicator & Remote Control Auto Oscillating Camping Ceiling Fan: Our portable fan features a digital battery indicator that displays the remaining battery percentage, letting you easily track how much power is left and when it's time to recharge. and camping fan can be controlled by button on the fan base or controlled by remote for Fan speeds, lighting settings, timer, auto oscillation functions with ease, It's especially convenient when the camping fan is hanging in a tent or positioned far from you.